Steam Curator: Source Engine Games

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Source Engine Games

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Please read! This is the full list of all Source 1-2 and GoldSource engine games/mods released on Steam. In total, the page contains 139 items, grouped by lists and years, to view all, click view full list!

Newly released reviews

Recommended September 13

“The adrenaline-fueled HLDM overhaul you’ve been waiting for. Packed with dynamic modes, extra weapons, refined classic maps, and advanced movement, it’s a fast, customizable, ever-evolving shooter.”

Recommended September 1

“Better Fortress 2 aims to bring new improvement & fixes to Team Fortress 2 while also restoring old removed & unused features, items, gamemodes, and more.”

Recommended September 1

“Play a Surreal and Abstract game of Hide and Seek across abstract realities watching as your beloved home falls into decay as you try desperately over and over again to hunt down your target.”

Recommended September 1

“A fantasy game with touches of environmental humor. The story is about a wench who has to solve a great mystery, which greatly intrigues the town where she lives.”

Recommended September 1

“Re-live the groundbreaking, critically acclaimed Half-Life 2 like never before, reimagined with RTX Remix. Featuring full ray tracing, remastered assets, and DLSS 4 with Multi Frame Generation.”

Recommended February 6

“A Nights Haunting: Source is an early access mod development enveloping the source engine community in an exciting approach to FPS game play.”

Recommended September 1

“As a cleaning machine, tend to the custodial duties of an office while trying to avoid human scrutiny and existential dread. Listen to the computers around you, while there is still time.”

Recommended September 1

“Time is an equation, and you're here to solve it. 1920s Chicago detective Zachary Burton must defeat the Combine's attempts to influence humanity's past in the 20s, 40s, and 80s.”

Recommended September 13

“Delta Particles – is a total conversion mod for HL. You're playing as a technical engineer of complex "Delta Base" Nick Farrell. Unfortunately, the protagonist was in the wrong place at the wrong time”

Recommended September 1

“Wake up, it’s time for the real nightmare to begin. Make your way through a terrorizing house, uncover the secrets of a haunted hospital, fight through hordes of the undead, and try to escape.”

2024-current (In the lists below this click view full list for full content)

List of all Source 1 and GoldSource engine games and mods released in 2024-current time. Total 15 items.

Recommended November 20, 2023

“The Portal Mod you've been waiting for. Delve into a new story with original characters, spanning over 8 hours of gameplay and featuring over 40 new challenging test chambers.”

Recommended September 1

“Confinement is a Portal 2 mod featuring 28 challenging co-op puzzles based around the confinement mechanic.”

Recommended September 13

“A new episode from the Half-Life Universe!”

Recommended August 14, 2019

“After 6 years of development, Battle Grounds III (BG3) is the next iteration in the classic franchise which began 17 years ago. Prepare for battle in the American War of Independence!”

Recommended September 1

“This is a mod for Portal 1. Includes new maps, storyline, a whole new Portal experience. This game take place in an Aperture laboratory in Eastern-Europe.”

Recommended September 1

“Wake up, it’s time for the real nightmare to begin. Make your way through a terrorizing house, uncover the secrets of a haunted hospital, fight through hordes of the undead, and try to escape.”

Recommended September 13

“Delta Particles – is a total conversion mod for HL. You're playing as a technical engineer of complex "Delta Base" Nick Farrell. Unfortunately, the protagonist was in the wrong place at the wrong time”

Recommended September 1

“Time is an equation, and you're here to solve it. 1920s Chicago detective Zachary Burton must defeat the Combine's attempts to influence humanity's past in the 20s, 40s, and 80s.”

Recommended September 1

“As a cleaning machine, tend to the custodial duties of an office while trying to avoid human scrutiny and existential dread. Listen to the computers around you, while there is still time.”

Recommended February 6

“A Nights Haunting: Source is an early access mod development enveloping the source engine community in an exciting approach to FPS game play.”

Recommended September 1

“Re-live the groundbreaking, critically acclaimed Half-Life 2 like never before, reimagined with RTX Remix. Featuring full ray tracing, remastered assets, and DLSS 4 with Multi Frame Generation.”

Recommended September 1

“A fantasy game with touches of environmental humor. The story is about a wench who has to solve a great mystery, which greatly intrigues the town where she lives.”

Recommended September 1

“Play a Surreal and Abstract game of Hide and Seek across abstract realities watching as your beloved home falls into decay as you try desperately over and over again to hunt down your target.”

Recommended September 1

“Better Fortress 2 aims to bring new improvement & fixes to Team Fortress 2 while also restoring old removed & unused features, items, gamemodes, and more.”

Recommended September 13

“The adrenaline-fueled HLDM overhaul you’ve been waiting for. Packed with dynamic modes, extra weapons, refined classic maps, and advanced movement, it’s a fast, customizable, ever-evolving shooter.”

2019-2023. There are 32 items in total, to see them all click view full list!

List of all Source 1-2 and GoldSource engine games and mods released in the period 2019-2023. Total 32 items, to view click view full list!

Recommended September 1

“Arctic Adventure is a episodic modification set in Half-Life Universe. In this mod you will ride through the Arctic landscapes, discover Aperture Science secrets and try new weapons.”

Recommended September 1

“A short, single player mod set in the Half-Life® universe, starting you on a path to help the resistance in their fight against the Combine.”

Recommended August 15, 2019

“Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass.”

Recommended October 20, 2020

“Lights. Camera. Action!”

Recommended May 5, 2015

“Relive Half-Life. ”

Recommended December 22, 2019

“Half-Life: Alyx is Valve’s VR return to the Half-Life series. It’s the story of an impossible fight against a vicious alien race known as the Combine, set between the events of Half-Life 1 and 2.”

Recommended September 1

“Half-Life 2: Genry's Great Escape From City 13 is a free custom modification for Half-life 2. The game takes place a month before the events of Half-life 2.”

Recommended September 13

“Previously known as Restore-Life, Half-Life: Restored is a fan made modification for Half-Life. This modification will stretch your Half-Life experience with unused, cut and retail version content.”

Recommended October 20, 2020

“Logistique is a modification which brings a different point of view to the events happening during Half Life 2. It's the first part of a single player campaign developped by Elseware Experience.”

Recommended October 20, 2020

“Slip into the Standard Issue Biosuit as Myo Hyori, a gifted Korean teenage girl who must face the perils of the future.”

Recommended September 1

“Amalgam is a Half-Life 2 singleplayer mod. Somewhere near the City 17, the rebels have been trying to destroy the combine communication towers known as relays.”

Recommended September 1

“Snowdrop Escape is a story-driven mod that unfolds a few years before the events of Half-Life 2. You take on the role of a professional mercenary named James.”

Recommended September 1

“Portal Reloaded is a free, community made modification for Portal 2. The mod builds on the concepts of the main game by allowing you to place a third portal.”

Recommended March 21, 2022

“HEAT REBORN is a free massively multiplayer online first-person shooter. Completely re-created the original HEAT PROJECT with modern game engine. Brings you the improvement of graphics, game balance.”

Recommended October 10, 2015

“Fan made Retro-RPG developed with the Source Engine. Explore Orio Island, gain the trust of the elemental god fairies and wield their magical powers to save the Divine Tree from the Relics of Gan-Ti ”

Recommended September 1

“Requiem Of Science is a free modification for Half-Life 2: Episode 2. The key features are the eclectic level design, unusual storytelling and the madness of the developer.”

Recommended September 1

“Introducing Aperture Desk Job — a free playable short made for the Steam Deck, set in the universe of the modestly popular Portal games.”

Recommended September 1

“Bad Cop is back. Command a small army of Combine synths and soldiers on a Northern campaign to capture Dr. Judith Mossman. A modification for Half-Life 2.”

Recommended September 1

“Half Life 2: VR Mod is a fan-made project, which adds full Virtual Reality support to the original 2004 PC gaming classic by Valve Software. Are you ready to become the Freeman?”

Recommended September 13

“A fan-made highly immersive Virtual Reality mod for the classic Half-Life from 1998.”

Recommended December 11, 2022

“Unleash the legendary physgun, cut from the final game, in the original Half-Life 2 physics sandbox. Manipulate the environment and build intricate contraptions with powerful tools.”

Recommended December 8, 2022

“Jabroni Brawl: Episode 3 is a free multiplayer Source engine game featuring an enormous variety of game modes, weapons and maps. It draws heavy inspiration from various forgotten Half-Life 1 mods.”

Recommended December 8, 2022

“Experience the critically acclaimed and award-winning Portal™ reimagined with full ray tracing and DLSS 4 in this free DLC for Portal owners. Start thinking with portals, with RTX on.”

Recommended December 11, 2022

“It's 1968 in Vietnam, the time to 'Make War Not Love'. Side with the Viet Cong or U.S. Army in this intense, fast-paced FPS set in the Vietnam War. Choose from over 200+ weapons of destruction.”

Recommended November 20, 2023

“Evacuation is an unofficial story-driven add-on for Half-life 2, telling the story of an rebel who crashes on a helicopter in the woods.”

2014-2018. There are 42 items in total, to see them all click view full list!

List of all Source 1-2 and GoldSource engine games and mods released in the period 2014-2018. Total 42 items, to view click view full list!

Recommended April 28, 2015

“A murder mystery, on a plane, in the future. You are Consortium Bishop Six, a global peacekeeper in the year 2042. Play an active role in the ongoing narrative. Every choice counts.”

Recommended September 23, 2014

“Estranged tells the story of a lone fisherman, whose ship is stranded on a mysterious island during a violent storm. Explore the rich environments and meet the curious inhabitants of the island.”

Recommended September 23, 2014

“Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative.”

Recommended October 1, 2014

“Thinking with Time Machine is a Portal 2 mod in which you will find and use a Time Machine to create a twin of yourself from the past to help you solve the puzzles.”

Recommended September 23, 2014

“NEOTOKYO° is a multiplayer first person shooter that provides a visceral & realistic combat experience in a rich futuristic setting.”

Recommended September 23, 2014

“Prove you are the world's greatest swordsman! Engage in tactical 1 vs. 1 sword fighting, 2 vs. 2, or sandbox FFA, or capture Control Points in a tactical slash-em-up.”

Recommended September 23, 2014

“Multiplayer based, first person enabled, action packed and skill demanding shooter set in the Wild West times. A unique combination of non stop action and slow but powerful weaponry.”

Recommended September 23, 2014

“Aperture Tag: The Paint Gun Testing Initiative is a Portal 2 Mod. It's time to think with Gels! The Portal-Gun is gone, but the testing must go on! Grab the Paint-Gun Device and solve brand new tests.”

Recommended October 26, 2014

“Losing his parents during the holocaust to a mad man of a doctor. You're to play as Grobuskna Vladinov, 20 years after the incident that changed his life dramatically.”

Recommended March 12, 2015

“Turn your entire digital life into a game. AArcade is a 3D desktop that launches shortcuts to absolutely anything you like. Join the anarchy of the persistent online metaverse, or remain in your own.”

Recommended September 13

“Counter-Strike Nexon is a Free to Play MMOFPS offering competitive PvP and PvE action including content from the original Counter-Strike and all new game modes, map creation function, weapons.”

Recommended October 26, 2014

“Double Action is a free stylish multiplayer game about diving, flipping, and sliding your way into action movie mayhem.”

Recommended December 7, 2014

“Lambda Wars is a free standalone multiplayer Source Engine modification set in the Half-Life 2 universe that brings the war between mankind and their brutal Combine overlords.”

Recommended September 1

“Rexaura is a modification for Valve's Portal containing a new 20-chamber campaign centered around high energy pellets and many new testing elements.”

Recommended July 5, 2015

“A completely free and extensive community-developed update for Half-Life 2 featuring beautiful lighting, countless bug fixes, and a brand new Community Commentary Mode.”

Recommended September 1

“FIREFIGHT RELOADED is a brutal Half-Life 2 mod focused on massive swarms of enemies and fast-paced, movement oriented gameplay.”

Recommended July 5, 2015

“Portal Stories: Mel is a community made, free modification for Portal 2 based in the Portal universe. It tells the story of Mel, who meets a new personality core and faces an undiscovered threat.”

Recommended September 13

“Headcrab Frenzy is a free dynamic action Half-Life mod which allows you to quench a desire to destroy these little bouncy critters to your heart's content, hold records, get achievements.”

Recommended October 3, 2015

“The Beginner's Guide is a narrative video game from Davey Wreden, the creator of The Stanley Parable. It lasts about an hour and a half and has no traditional mechanics, no goals or objectives.”

Recommended September 1

“Wilson Chronicles lets you return to Black Mesa!”

Recommended January 16, 2016

“INFRA puts you into the boots of a structural analyst on a routine mission. Quickly though, your task turns into a fight for survival, all caused by deep-rooted schemes of the past.”

Recommended January 15, 2016

“Prospekt begins in the Nova Prospekt prison in the Half-Life universe.”

Recommended March 11, 2016

“Singleplayer science fiction game focusing on interacting and communicating with alien species. You can either fight or try to find a way to communicate.”

Recommended September 11

“The curator's page has been updated, missing games/mods on Source have been added and sorted into lists by release date from 2004 to 2025. Check out these lists and you'll find a lot of new things!”

Recommended June 16, 2016

“TE120 is a short single player experience set in the Half-Life Universe featuring a gravity defying weapon that allows you to jump buildings and sustain large falls.”

2009-2013. Total 22 items.

List of all Source 1-2 and GoldSource engine games and mods released in the period 2009-2013. Total 22 items.

Recommended September 23, 2014

“Zeno Clash is an action/fighting game set in a punk fantasy world. The game is played from a first person perspective and the combat is generally up close and brutal. Experience a deep storyline.”

Recommended September 23, 2014

“Smashball is a fast-paced, ultra violent first-person sports shooter. Two teams use super-human maneuvers, a real-physics grappling hook and high-powered weaponry to try to get a single ball.”

Recommended September 23, 2014

“Set in the zombie apocalypse, Left 4 Dead 2 (L4D2) is the highly anticipated sequel to the award-winning Left 4 Dead, the #1 co-op game of 2008.”

Recommended September 23, 2014

“Step into the ultimate three-way war for honor, glory, and gold! This beloved community-driven game brings together swashbuckling Pirates, battle-hardened Vikings, and chivalrous Knights.”

Recommended September 23, 2014

“Co-operative multiplayer game and complete code base available for free.”

Recommended September 24, 2014

“tl;dr the ship but with less complexity 10/10”

Recommended September 23, 2014

“Frantic, multiplayer action involving Nazis and dinosaurs! What are you waiting for? This is World War II as it should have been!”

Recommended September 23, 2014

“The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!”

Recommended September 23, 2014

“In a dark Cyberpunk world, you (and up to 3 friends) wage war against the all-powerful Federation in this Source-powered FPS/RPG.”

Recommended December 17, 2014

“Explore war-torn post-apocalyptic landscapes and take fight against enemies using various weapons in this FPS/RTS hybrid.”

Recommended September 23, 2014

“The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat.”

Recommended September 24, 2014

“Good or Insane? The choice is yours. Following the Apocalyptic end to the Postal Dude’s week in Paradise, we follow him and his insane pitbull Champ.”

Recommended September 23, 2014

“Begin a journey through one of the most original first-person games of recent years.”

Recommended March 12, 2015

“Mayan prophecy foretells the beginning of a new world age on December 21, 2012. Can the four heroes save humanity by defeating these evil foes?”

Recommended December 12, 2022

“Year Long Alarm is a Half-Life 2 single-player mod that is set in an abandoned mine outside of City 17. A Scanner has discovered you, and the Combine are closing in on your position.”

Recommended September 25, 2014

“(Free) Epic conversion of the Source Engine to an MMORPG game. It is based in a fantasy world with Medieval Style”

Recommended September 23, 2014

“For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin.”

Recommended September 13

“Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions.”

Recommended September 23, 2014

“Pervasive. Literary. Brutal. Experimental.MINERVA, by Adam Foster, takes you to a remote island under the control of Combine forces. Something is going on here. Your goal is to uncover what that is.”

Recommended September 23, 2014

“Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover.”

Recommended September 23, 2014

“The Stanley Parable is a first person exploration game. You will play as Stanley, and you will not play as Stanley. You will follow a story, you will not follow a story.”

Recommended September 23, 2014

“Contagion isn't your average Zombie Shooter but instead takes a more realistic and different approach to the popular genre with unique characters, environments, weapons, items, and a built in system.”

1998-2008. There are 36 items in total, to see them all click view full list!

List of all Source 1 and GoldSource engine games and mods released in the period 1998-2008. Total 36 items, to view click view full list!

Recommended September 13

“Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world.”

Recommended September 13

“Sven Co-op is a co-operative game originally based around Valve Software's Half-Life. In this game players must work together against computer controlled enemies and solve puzzles as a team.”

Recommended September 13

“One of the most popular online action games of all time, Team Fortress Classic features over nine character classes -- from Medic to Spy to Demolition Man.”

Recommended September 13

“Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action.”

Recommended September 13

“Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions.”

Recommended September 13

“A futuristic action game that challenges your agility as well as your aim, Ricochet features one-on-one and team matches played in a variety of futuristic battle arenas.”

Recommended September 13

“Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which you play as Barney Calhoun, the security guard.”

Recommended September 13

“Enjoy fast-paced multiplayer gaming with Deathmatch Classic (a.k.a. DMC). Valve's tribute to the work of id software.”

Recommended September 13

“Enlist in an intense brand of Axis vs. Allied teamplay set in the WWII European Theatre of Operations.”

Recommended September 13

“With its extensive Tour of Duty campaign, a near-limitless number of skirmish modes, updates and new content for Counter-Strike's award-winning multiplayer game play.”

Recommended September 23, 2014

“Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.”

Recommended September 23, 2014

“Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay.”

Recommended September 23, 2014

“Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance.”

Recommended September 24, 2014

“Was released on the same day as HL2. Underrated dark RPG. Good Character customization, features, missions set in a vampir world.”

Recommended September 23, 2014

“Synergy enables you to play through the Half-Life 2 series and many other singleplayer Source Mods cooperatively with friends.”

Recommended September 23, 2014

“Dystopia is a cyberpunk game with tense combat situations in a high-tech world spanned by computer networks. Playing as either Punk mercenaries, or Corporate security forces, the player will fight.”

Recommended September 23, 2014

“Valve's WWII Multiplayer Classic - Now available for Mac.”

Recommended September 23, 2014

“Originally planned as a section of the Highway 17 chapter of Half-Life 2, Lost Coast is a playable technology showcase that introduces High Dynamic Range lighting to the Source engine.”

Recommended September 23, 2014

“Half-Life Deathmatch: Source is a recreation of the first multiplayer game set in the Half-Life universe. Features all the classic weapons and most-played maps, now running on the Source engine.”

Recommended September 24, 2014

“You are John Blade, commander of HardCorps, an elite security force dedicated to protecting the people of Freeport City. Four years have passed since your first battle with Elexis Sinclaire.”

Recommended September 23, 2014

“Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17.”

Recommended September 23, 2014

“The Ship is a murder mystery multiplayer.”

Recommended September 23, 2014

“Best combat mechanics of any game to date. Epic RPG game. 10/10”

Recommended September 23, 2014

“Garry's Mod is a physics sandbox. There aren't any predefined aims or goals. We give you the tools and leave you to play.”

Recommended September 26, 2014

“Eternal Silence is a science fiction mod that pits two capital ships against each other in a seamless blend of space warfare and tactical infantry combat.”