Single-player games like KOTARO Survivor
Below are 9 single-player Steam games similar to KOTARO Survivor, 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 KOTARO Survivor page.
Ranked picks
- 1

Genome Guardian 2
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
COMBINE WEAPONS in the microscopic shooter with macroscopic depth. BUILD YOUR NANOBOT from hundreds of parts. SURVIVE the microbial onslaught once more in this psychedelic dive to the Abyss, full of mutations, minerals, anomalies and powerup polyps. SHMUP mode turns it into a vertical shoot 'em up!
- 2

Don't Die, Collect Loot
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
It's time to become ridiculously powerful in an arcade roguelite RPG with no limits on your power! Guide your hero through infinite retro fantasy worlds, get loot, gain upgrades, and keep growing their power as you rip through hordes of enemies in the ultimate power fantasy!
- 3

Last Man Sitting
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action with KOTARO Survivor.
Shoot, hack and grind your way through waves of sentient office appliances in Megabonk-like roguelite action. Level up, unlock upgrades and play in singleplayer or up to 4-player coop while 360 no-scoping on an office chair!
- 4

Gacha Fever
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
Gacha Fever is a suvivors like in a cute and colorful universe. You will fight waves of monsters with various weapons, from the machine gun to the magical girl wand and the Bubble Tea Canon ! Just be careful of the area !
- 5

Megabonk
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
Smash your way through endless waves of enemies and grow absurdly powerful! Grab loot, level up, unlock characters and upgrade to create unique and crazy builds as you fend off hordes of creatures!
- 6

Deadly Days: Roadtrip
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
Loot, shoot, and mow down zombie hordes in this bullet heaven fever dream. Embark on a deadly roadtrip, fuel your bus, decide when to extract – and get that sweet inventory management kick when that new slot in your backpack fits just right.
- 7

Demon Hunt
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
Battle through demon-infested lands in this fast-paced rogue-lite bullet-heaven. Pick unique weapons with powerful evolutions, and hunt down ancient demons in intense boss fights. Loot, upgrade, and unlock new ways to grow stronger after every hunt!
- 8

Machick 2
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
A magical, chaotic roguelike-survivor. Craft insane wands, evolve and fuse powerful spells, equip crazy gear, and wield the power of divine relics. Get ready to wipe out hordes of hungry frogs and face mighty bosses in unique, unpredictable runs.
- 9

Get Me Out, Please
Single-player alternative to KOTARO Survivor — playable solo, no multiplayer required. Shares Action and Indie with KOTARO Survivor.
Work together with friends to escape an abandoned school in this horror escape action game for up to four players, but beware: one of you will become a monster.