Explore the vast terrains of Mars, generated from real NASA satellite data, and survive threats like dust storms by discovering randomized supply caches and habitats. Adventure on foot or in driveable rovers with this otherworldly first-person sandbox.
All Reviews:
Mostly Positive (33) - 75% of the 33 user reviews for this game are positive.
Release Date:
May 17, 2017
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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Random Seed Games is currently only one full-time developer and a few part-time contributors. I want to get as much feedback as possible on the Survival Sandbox gameplay systems while I continue to expand the game and add features in preparation for a Story Mode.”

Approximately how long will this game be in Early Access?

“It is likely that Lacuna Passage will be in Early Access for at least a year before Story Mode is available.”

How is the full version planned to differ from the Early Access version?

“Story Mode is my long term goal, but I will respond to player's interests with the Survival Sandbox. I will be targeting monthly updates that will address bugs and add new features.”

What is the current state of the Early Access version?

“Lacuna Passage currently exists only as a Survival Sandbox, with an emphasis on the "Sandbox". There is no narrative. There is no combat. This is a very small game with light survival mechanics. The primary activity is exploration. If you are satisfied by "walking simulators" or have an interest in space photography you might find the Early Access version compelling. If you want a more structured and goal-oriented experience you might want to wait until the Story Mode is finished.”

Will the game be priced differently during and after Early Access?

“I may gradually raise the price as I ship new content and features.”

How are you planning on involving the Community in your development process?

“The main reason I am releasing on Steam Early Access is so that I can get feedback from players. I plan to engage with the community on the Steam discussion forums and the official feedback forum that is accessible through the game's main menu.”
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Recent updates View all (9)

June 30

Research Update - v0.64



This month I'm introducing the first of many new late-game goal mechanics. No longer will the survival mode be entirely based on survival time. You now have the optional side objective of completing mission research.

Much of this update consists of background implementation that will allow me to expand on the research features down the road, but for this first iteration I have added rock sample collection as the first type of research.

So how does it work? Collecting research is a critical goal for these manned missions to Mars. There will be many types of research samples to collect (just rock samples for now though) and then deposit in the storage sections of each habitat. You only have five slots for each type of research sample in your personal inventory, so make sure to deposit these samples in habitat storage regularly. Habitats also only have five slots for each type of research sample. Research samples in your inventory do not contribute to your progress, so between the three habitat locations that is a total of 15 possible samples that will be used to judge your overall research quality. Filling all 15 slots will certainly help, but the quality of each individual sample also greatly impacts the overall research quality.

Rock sample research is collected with a pickaxe. Equip a pickaxe from your inventory and then use it to break off small samples from the terrain or other rock formations. Visible differences in the surface being sampled will result in a unique type of rock sample being collected and added to your inventory. You have five slots in your inventory to hold these samples. Your rock sample research quality is judged on three factors. Diversity of rock type, average distance between sampled locations, and average difference between sampled altitudes. Only the samples that have been deposited in habitat storage will be judged for research quality.

Currently you can view your research quality by viewing the samples you have deposited in the habitat storage, but that progress does not yet apply to any meta rewards. In the next few updates I will be adding new Steam scoreboards and achievements for high research quality scores.

Change Log
  • Added unique material type of Rock Sample.
  • Pickaxe is now equippable during an EVA.
  • Using a pickaxe on the terrain or a rock will add a Rock Sample to your inventory.
  • Limited inventory and storage slots for Rock Samples allow for unique data to be saved associated with each sample.
  • Research quality is calculated based on data differences between stored Rock Samples.
4 comments Read more

March 31

Radiation Storms Update - v0.63



Radiation storms are a new environmental hazard for Lacuna Passage. They will not occur if you pick the "No Storms" scenario, but otherwise they are randomized low levels of radiation exposure that you can only escape by taking shelter in a habitat.

This update is a bit lighter on additional features than I was hoping for, but I just wanted to get something out for this month. Because of the rush to publish, there are also some balance issues that may need to be addressed in the near future since I didn't have time to properly test everything.

The main change that may cause balance issues is the lengthening of the day-night cycle. Players have requested for quite some time now that the days should be extended a bit to feel more realistic. Previously, 30 minutes real-time equated to a full in-game day. Now this has been doubled to 1 hour real-time. Almost every variable in the game will be affected by this change, and so the ramifications aren't fully known yet. Please report any major issues via the feedback forum.

There are several other changes in this update as well. Here are all the major additions that you can expect to find:

Change Log
  • Randomized radiation storms have been added.
  • New datapad documents have been added to help explain dust storms, radiation storms, and radiation zones (map boundaries).
  • A failed or turned off heater will now eventually cause water tanks to freeze. Once the internal habitat temperature reaches below 0 Celsius water will be slowly lost to freezing.
  • Fixed a visual bug with the PRT maintenance screen.
  • Components installed in exterior modules will degrade slower if they are not essential for module operation. For example, if you have 5 fuses installed, 2 of them will degrade slower than the first 3 because only 3 are required for operation.
  • Navigation systems are now based on proximity to WayStats during a dust storm. The more intense the storm, the closer you will need to be to an operational WayStat in order to maintain your navigation systems.
  • The movement speed penalty during a dust storm has been drastically reduced, but now your exhaustion, calorie and water consumption are increased during a dust storm.
  • The degradation rates of exterior module components are now increased for habitats that are in the area of a passing dust storm.
  • The charge rate of an equipped portable solar panel while on EVA is now identical to the charge rate with it equipped in a panel slot of an exterior module. This has reduced the EVA charge rate enough that it can no longer surpass the battery drain of your suit, but it does drastically reduce the speed that your suit battery will drain. This is to prevent the exploit where you could charge your suit battery quickly with an equipped portable solar panel and then dump the charge back into your habitat battery.
  • The scanner overlay has been fixed for ultrawide monitors.
  • One real-time hour now equals 1 in-game day/sol.
  • Death from EVA suit battery being depleted (death from heat loss) now takes much longer to bring it in line with other systems and be more realistic.
  • Fixed a bug that caused exiting a pop tent to result in falling through the map.

Additional Changes in 0.63.1
  • Increased the supplemental recharge rate of equipped portable solar panel while on EVA. Still won't overcome the normal drain of your battery, but it reduces the rate of discharge quite drastically.
  • Fixed a major bug causing an incorrect passing of time when sleeping, crafting, salvaging, or repairing.

Additional Changes in 0.63.2
  • Fixed a bug causing game freezes to occur while repairing components.
  • Fixed a bug affecting water production after frozen storage tanks are reheated.
  • Fixed a bug causing removed components to sometimes still appear visible in exterior module slots.

Additional Changes in 0.63.3
  • Added a simple loading screen animation with randomized gameplay tips.
  • Fixed a bug where double-tapping a datapad hotkey caused unintended conflicts.
  • Added a notification that crafting and salvaging are not accessible when there is no power.
  • Fixed a display issue on the habitat status screen where it was showing full water tanks with no water available.
  • Fixed a bug where pressing the inventory hotkey while viewing the habitat storage caused the datapad to close instead of accessing your inventory.
5 comments Read more
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AWARDS AND ACCOLADES

“A gorgeous game of mystery and survival” - Kotaku

"I’ll happily play" - Rock Paper Shotgun

"Lacuna Passage stands out from the competition with gameplay and "realistic" environments" - Jeuxvideo.com

"A massive, convincing game world" - Red Bull

"A very realistic portrayal of what life is like on the Red Planet" - GameSkinny

"The game has captured the imagination of many space and science fiction fans" - Mashable

"There is plenty to enjoy about Lacuna Passage" - GAMR

"Pretty damn neat" - Select Button

"The landscapes are magnificent" - Game-Guide

"The game's music is completely off the hook" - Cinema Blend

"They’ve captured the vibe of Mars very well" - Tech Raptor

About This Game

You wake in an landing pod, check your equipment, and venture out onto the red Martian soil in search of a nearby habitat. With 25 square miles of the Red Planet to explore and survive, you must gather resources from randomized points-of-interest, supply caches, and other habitats in order to continue your mission. But survival is more than just tracking status bars. Maintaining your life-support equipment is just as important as maintaining your health. Lacuna Passage’s Survival Sandbox will allow you to test drive the core game mechanics in Steam Early Access ahead of the upcoming Story Mode.



Explore a massive terrain generated from actual Mars satellite imagery. With features generated from scans collected by the HiRISE project and details painstakingly designed to reflect the photography captured by planetary rovers, this is as close as you can get to visiting the true Red Planet.



Survive the harsh Martian environment with mechanics based on real health metrics like blood glucose levels, heart rate, caloric intake, and more. You will feel like a true interplanetary pioneer as you conquer the elements and survive randomized threats like dust storms.



Capture the beauty of Mars with an in-game photography mechanic that allows you to document your discoveries. Photos are saved to your computer at full 1920x1080 resolution and can be referenced in-game where you can set objective points to navigate back to where the photos were taken.



Interact with the various astronaut technologies through your dependable datapad. You will need to manage inventories, salvage and craft supplies, and repair vital life support systems in order to survive the desolate landscapes of Mars. Find and drive rovers to help manage multiple habitats.

System Requirements

Windows
Mac OS X
    Minimum:
    • OS: Windows 7/8.1/10
    • Processor: Intel Core i3
    • Memory: 2 GB RAM
    • Graphics: nVidia GTX 480, AMD Radeon 7870
    • Storage: 5 GB available space
    Minimum:
    • OS: OSX (64 bit versions)
    • Processor: 2 GHz Equivalent CPU
    • Memory: 4 GB RAM
    • Graphics: OpenGL 3 Compatible GPU
    • Storage: 5 GB available space
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