Single-player games like Cosmic Coliseum
Below are 9 single-player Steam games similar to Cosmic Coliseum, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Cosmic Coliseum page.
Ranked picks
- 1
Sharded World
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
Sharded World is a reversed bullet hell, rogue-lite, ARPG game combining simple gameplay and great rpg progression. Each level has its own unique features and challenges. Upgradable characters, weapons and orbs. Challenges, daily quests, and leaderboards. Fight, get stronger and defeat the Lich!
- 2
Cyclo Chambers
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
Collect synergizing items to create an overpowered character to fight hordes of cyclops monsters. Cyclo Chambers is a fast-paced, top-down arena shooter with light rogue-like elements. 150 items to choose from to create frantic combinations. Different runs every time.
- 3
Gatekeeper
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper!
- 4
Neon Chrome
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
A masterful combination of top-down shooter and endless replayability with procedural levels. Blast your way through walls & enemies with guns and cybernetic abilities. Install perks from cyber chambers and upgrade your character stats after each death. Can you stop the Overseer?
- 5
Blazing Beaks
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
Roguelite - where too much greediness can be fatal. A colorful world with armed birds blazing their way through piles of mutants, monsters and creepy creatures. Lots of mysteries to unravel, secrets to discover and levels to explore.
- 6
SYNTHETIK 2
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
SYNTHETIK 2 is a unrelenting tactical-shooter rogue-lite. Play alone or with friends. Loot powerful tech. Experience the next level in gun-play. Upgrade your androids to rival the machine gods!
- 7
Shape Shifter: Formations
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action with Cosmic Coliseum.
Shape Shifter: Formations is an action twin-stick shooter with rogue-lite elements, where you must destroy hordes of geometric enemies alone or with a friend. Select your ship and combine a large variety of weapons, abilities and infinitely stacking upgrades to craft your own unique build.
- 8
SYNTHETIK: Legion Rising
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
SYNTHETIK is an unforgiving tactical shooter rogue-lite where freedom and experimentation is key. Fight in a world overrun by the Machine Legion and their Gods. Experience the next level in gun-play and dive into unparalleled build options and Android upgrades. Can you defeat the Heart of Armageddon?
- 9
Vampire Survivors
Single-player alternative to Cosmic Coliseum — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Coliseum.
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!