Single-player games like Ammo and Oxygen
Below are 10 single-player Steam games similar to Ammo and Oxygen, 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 Ammo and Oxygen page.
Ranked picks
- 1
Gerty
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
In fully destructible terrains, carve your own path in a new rogue-lite that focuses on challenging combat. Dive into the deep tunnels of a mining colony on your own, or in local co-op with up to 4 players. Purchase gear, level up your character, and gain powerful perks to eliminate the alien horde.
- 2
Legend of Dungeon
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Legend of Dungeon is a randomly generated action RPG Beat'em'up with heavy Rogue-like elements, striking visuals, and dynamic music.
- 3
Ants Took My Eyeball
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Ants Took My Eyeball is a 2D action platformer roguelite. Descend into an ever-changing ant hill, fight your way through hordes of insects with a variety of weapons, face formidable bosses and ultimately find your stolen eyeball.
- 4
Danger Scavenger
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Danger Scavenger is fast-paced action, cyberpunk-themed, roguelite skyline crawler. Blow up, cut, shoot enemy robots on the roofs of skyscrapers. Choose your way to higher levels, loot, buy stuff, upgrade yourself, fight against greedy corporations, be a rebel!
- 5
Blacksea Odyssey
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Enter the Blacksea Odyssey, a violent top-down rogue-lite space shoot ‘em up RPG brimming with colossal creatures and runic technologies. Explore dangerous, interstellar spacescapes as you hunt enormous space-behemoths with a harpoon and rune-infused spears.
- 6
Nuclear Throne
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?
- 7
Neon Chrome
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
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?
- 8
Serious Sam: Tormental
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Serious Sam: Tormental is a 3D rogue-lite top-down shooter where you blast your way through the tormented mind of demigod of destruction Mental, as he imagines worlds and monsters that stand on your path towards his inner ego. Let the showdown begin!
- 9
Corrupted
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Action and Indie with Ammo and Oxygen.
Corrupted - the mix of arcade, RPG and visual novel. Fight off the hordes of monsters and break through to the truth. Discover new skills and improve your combat arsenal. The ground under your feet will be strewn with skulls of enemies!
- 10
Grimgrad
Single-player alternative to Ammo and Oxygen — playable solo, no multiplayer required. Shares Indie with Ammo and Oxygen.
Build your own Slavic settlement. Overcome the hardships of medieval life and don't anger the Gods!