SLOPArena is a free 3D platform fighter. Rack up damage, launch your friends off the stage, and settle it online with rollback netplay. Made by one developer, open source, and proudly a little janky.

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Coming Soon To Early Access

The developers of this game intend to release as a work in progress, developing with the feedback of players.

Note: Games in Early Access are 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?

“SlopArena is currently in early development. Current goal is to build a fun base showing off the potential of the gameplay system;
SlopArena is looking for contributors! This project is meant to be collaborative, powered by the combination of F2P, open source and workshop support !”

Approximately how long will this game be in Early Access?

“With current scope I estimate 6 months, but it will depend on where we take the game from here :)”

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

“Actual art & models, more characters, more stages, more game modes ! This is just an early prototype.”

What is the current state of the Early Access version?

“Advanced prototype. A lot of assets (menus, sound, artworks, models, vfx,...) are AI placeholders in order to create a prototype of what SlopArena could be. The goal is to prove that the recipe is good in order to make more people cook with us !”

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

“SlopArena will always stay free.”

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

“Social media presence (Discord, Reddit, ...) in order to get attention for people looking to create platform fighters ! With the game being open source & workshop compatible, the potential is there. I will create readable documentation, tutorials & videos in order to show people how to get involved in development. You don't have to be a coder, everyone can play a part in creating this project!”
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About This Game


SLOPArena is a 3D platform fighter. Every hit raises your damage, and the higher it climbs, the further the next hit sends you. Knock your friends off the stage before they do it to you.


Five fighters, each with a full moveset and four specials.
  • FightGuy. Loves punching stuff. But also kicking stuff.
  • Manki. There's nothing a few explosives can't fix.
  • Wibou. He studied the blade. A lot.
  • Sir Bonk. Sir Bonk do bonky bonks.
  • Nyx. A witch with another side.
More fighters are on the way.


Seven stages to fight on and fall off: Table Manners, Splash Deck, Slop Pit, After Hours, Last Stop, Log Off and Hamster Habitat.


Online fights use rollback netplay, so matches stay responsive. Open a room, invite friends through Steam, chat, and watch the replay afterwards.


Not every fight needs a winner.
  • Slopball. Keep the ball in play under the floodlights and chase your best return combo.
  • Courses. Break every target and reach the finish as fast as you can.
  • Training and the Fighter's License. Learn the moves before the slop learns you.


SLOPArena is free to play and open source, made by one developer. The code is on GitHub. It's still in playtest: expect jank, report it, and watch it get fixed.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

SlopArena is a non-profit open source game created by a solo developer. AI was used extensively during development for various tasks such as research, brainstorming, planning, coding, analysing. Some assets were bought, some were generated to reduce costs. Generated assets are seen as placeholder, especially character models.

System Requirements

    Minimum:
    • OS: Windows 10 / 11, 64-bit
    • Processor: Intel Core i5-6500 / AMD Ryzen 3 1200 or equivalent
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 1050 / AMD Radeon RX 560 or equivalent
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 1 GB available space
    Recommended:
    • OS: Windows 10 / 11, 64-bit
    • Processor: Intel Core i5-6500 / AMD Ryzen 3 1200 or equivalent
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 1050 / AMD Radeon RX 560 or equivalent
    • DirectX: Version 11
    • Network: Broadband Internet connection
    • Storage: 1 GB available space