IMHO.

Games like Cosmic Slime Defense

If Cosmic Slime Defense is your kind of game, the closest matches are Galacticon, Super Slinger and Space Depression — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Cosmic Slime Defense: 2D pixel art platform game in which you are in charge of eliminating alien enemies that try to conquer your planet.

2024ActionIndieCasual8.99 USDWindowsby JCVR
Cosmic Slime Defense — Steam game cover

Players who liked Cosmic Slime Defense also play

Steam players who put hours into Cosmic Slime Defense also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. Galacticon

    WHY THIS

    Top pick for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Cosmic Slime Defense.

    Galacticon is a video game with the look and feel of arcade cabinet games from the early 80's in the style of Williams classics: "Defender" or "Joust", with the gameplay of legendary "Jetpac", and with touches of "puzzle".

    2022ActionIndie4.99 USDSteam ↗
  2. Super Slinger

    WHY THIS

    Second-strongest match for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Cosmic Slime Defense.

    Super Slinger is a cute and funny pixelated arcade-like shooter where you fight against the alien invasion in an attempt to send them back home. Cute art, juicy gameplay, difficult stages, and SLINGSHOTS!

    2022ActionIndieAdventure1.99 USDSteam ↗
  3. Space Depression

    WHY THIS

    Third-strongest match for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Cosmic Slime Defense.

    You must do your best to protect the world! Destroy all enemies. Get the highest score.

    2021ActionIndieCasual1.99 USDSteam ↗
  4. At The Downstairs

    WHY THIS

    Ranked #4 for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Cosmic Slime Defense.

    What, you can easily pass all the obstacles you face? So, are you our last hope? So, do you want some absurdity? And are you doing all this to beat the ZUMBEKUKKA at downstairs? Dude, you are really brave!

    2020ActionIndieAdventure2.99 USDSteam ↗
  5. Code Arcturus

    WHY THIS

    Ranked #5 for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Cosmic Slime Defense.

    Code Arcturus is a retro inspired arcade-style action platformer, with aliens, robots, spikes, explosions, and lots of coins. Blast your way through levels, compete for the fastest times on the leaderboards in Speedrun mode, or put your skills to the ultimate test in Nerfed mode

    2020ActionIndie3.99 USDSteam ↗
  6. UpBoll

    WHY THIS

    Ranked #6 for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Indie and Casual with Cosmic Slime Defense.

    UpBall is a game of climbing up by controlling the speed of time Each death will not reset the level or let you start over If you are unskilled, then stop the time and think about what to do next The game is inspired by “SUPERHOT”

    2020IndieCasualEarly AccessFreeDeck VerifiedSteam ↗
  7. Downwell

    WHY THIS

    Ranked #7 for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Cosmic Slime Defense.

    Downwell is a curious game about a young person venturing down a well in search of untold treasures with only his Gunboots to protect him.

    2015ActionIndieAdventure2.99 USDDeck VerifiedSteam ↗
  8. Spidersaurs

    WHY THIS

    Ranked #8 for Cosmic Slime Defense fans by collaborative filtering across millions of Steam libraries. Shares Action with Cosmic Slime Defense.

    The nightmarish dinosaur-spider hybrids known as Spidersaurs have run amok! Armed with an arsenal of awesome weapons, it's up to you (and a friend in co-op mode) to shoot your way through six levels of ferocious run-’n’-gun mayhem and send these mutant monstrosities back to the stone age.

    2022ActionAdventure19.99 USDSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Cosmic Slime Defense at current Steam store prices.

  1. Garry's Mod

    WHY THIS

    Priced ~44% under Cosmic Slime Defense on Steam right now. Shares Indie and Casual with Cosmic Slime Defense.

    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.

    2006IndieSimulationCasual4.99 USDDeck PlayableSteam ↗
  2. Vampire Survivors

    WHY THIS

    Priced ~44% under Cosmic Slime Defense on Steam right now. Shares Action and Indie with Cosmic Slime Defense.

    Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!

    2022ActionIndieRPG4.99 USDDeck VerifiedSteam ↗
  3. Titanfall® 2

    WHY THIS

    Priced ~50% under Cosmic Slime Defense on Steam right now. Shares Action with Cosmic Slime Defense.

    Respawn Entertainment gives you the most advanced titan technology in its new, single player campaign & multiplayer experience. Combine & conquer with new titans & pilots, deadlier weapons, & customization and progression systems that help you and your titan flow as one unstoppable killing force.

    2020Action4.49 USDDeck PlayableSteam ↗
  4. Cookie Clicker

    WHY THIS

    Priced ~44% under Cosmic Slime Defense on Steam right now. Shares Indie and Casual with Cosmic Slime Defense.

    An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.

    2021StrategyIndieSimulation4.99 USDDeck PlayableSteam ↗
  5. WEBFISHING

    WHY THIS

    Priced ~44% under Cosmic Slime Defense on Steam right now. Shares Indie and Casual with Cosmic Slime Defense.

    WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)

    2024IndieMassively MultiplayerCasual4.99 USDSteam ↗
  6. POSTAL 2

    WHY THIS

    Priced ~89% under Cosmic Slime Defense on Steam right now. Shares Action and Indie with Cosmic Slime Defense.

    Live a week in the life of "The POSTAL Dude"; a hapless everyman just trying to check off some chores. Buying milk, returning an overdue library book, getting Gary Coleman's autograph, what could possibly go wrong?

    2012ActionIndieAdventure0.99 USDDeck VerifiedSteam ↗
  7. Buckshot Roulette

    WHY THIS

    Priced ~67% under Cosmic Slime Defense on Steam right now. Shares Action and Indie with Cosmic Slime Defense.

    Play Russian roulette with a 12-gauge shotgun. Four enter. One leaves. Roll the dice with your life. Good luck!

    2024ActionIndieSimulation2.99 USDDeck PlayableSteam ↗
  8. Brotato

    WHY THIS

    Priced ~44% under Cosmic Slime Defense on Steam right now. Shares Action and Indie with Cosmic Slime Defense.

    Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.

    2023ActionIndieRPG4.99 USDDeck VerifiedSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Cosmic Slime Defense.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  2. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Cosmic Slime Defense.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  3. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Cosmic Slime Defense.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Cosmic Slime Defense.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Casual with Cosmic Slime Defense.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  6. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Cosmic Slime Defense.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  7. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Cosmic Slime Defense.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  8. Awaria

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Cosmic Slime Defense.

    Awaria is a short game about working in haunted maintenance tunnels.

    2024ActionIndieFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about Cosmic Slime Defense

How much does Cosmic Slime Defense cost?
Cosmic Slime Defense is listed on Steam at 8.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Cosmic Slime Defense?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Cosmic Slime Defense are Galacticon, Super Slinger, Space Depression.
Who developed Cosmic Slime Defense?
Cosmic Slime Defense was developed by JCVR.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Cosmic Slime Defense.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

24 Games Like Cosmic Slime Defense — Ranked for 2026 · imho.run