Single-player games like Ultra Mega Cats
Below are 10 single-player Steam games similar to Ultra Mega Cats, 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 Ultra Mega Cats page.
Ranked picks
- 1

AFTERBLAST
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action and Early Access with Ultra Mega Cats.
AFTERBLAST is a challenging FPS roguelite. Play SOLO or in CO-OP (1-4 players). Get stronger each run. Obtain powerful abilities, weapons and find a way to save your planet. Stand up against the Gods and defeat hordes of monsters in intense bullet-hell combat!
- 2

GODBREAKERS
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action with Ultra Mega Cats.
Fast, Fluid, Frenetic! Break gods, steal powers, and chain abilities in a hectic combat loop. This 1-4 player co-op action roguelite is built for fast pick-up sessions and endlessly replayable chaos. Experience tough battles and maximum expression where every run feels rewarding!
- 3

LORT
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action and Early Access with Ultra Mega Cats.
LORT is a 1–8 player co-op action roguelite. Team up with your friends to battle, loot, and stack ridiculous power-ups across a cursed fantasy world. Fight toward escape, revive your homies, and get absolutely chadded as you evolve from goblin tickler to god slapper.
- 4

Vellum
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action with Ultra Mega Cats.
Write on! Defend the books in Vellum, a co-op, literary roguelike! Harness class-defining colors, master an inspired spellbook, and influence the growth of your enemy! As a group or solo, you'll craft plot-twisting builds to rewrite the rules in Ink!
- 5

Roboquest
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action with Ultra Mega Cats.
Roboquest is a fast FPS Roguelite in a scorched futureworld. You're a rebooted Guardian, ready to kick some metal ass! Fight with your buddy or by yourself and annihilate hordes of deadly bots in ever-changing environments.
- 6

Abyssus
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action with Ultra Mega Cats.
Choose your loadout, blast through the corrupted denizens of a sunken civilization, and wield godly powers in Abyssus – a fast-paced 1-to-4 players FPS and roguelite brinepunk adventure.
- 7

Atomic Picnic
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action and Early Access with Ultra Mega Cats.
Third-person bullet heaven meets explosive co-op action! Swing, dash, and blast through monster swarms while combining upgrades and discovering rare evolutions to create game-breaking builds of destruction.
- 8

ArcRunner
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action with Ultra Mega Cats.
Traverse 'The Arc' in this beautiful, Cyberpunk-styled action rogue-lite as you attempt to reset an evil rogue AI. Experiment with different weapons and augments as you fight hordes of machines programmed for your annihilation! Collect Nanites & power-up after every run either solo or with friends!
- 9

Fort Solis
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required.
Answer the call from a mining base on Mars as engineer Jack Leary and search for the missing crew. Fort Solis will immerse you with cinematic visuals powered by UE 5 and voice acting of Roger Clark and Troy Baker. Explore the mining complex and reach climax of this narrative thriller experience.
- 10

Insanitorium - Don’t Be Afraid
Single-player alternative to Ultra Mega Cats — playable solo, no multiplayer required. Shares Action with Ultra Mega Cats.
Trapped in a psychiatric hospital, you must escape demons lurking in the shadows.Explore Insanitorium only with your flashlight and scarce batteries, defend yourself with a machete and a dart gun, and face the strange patients. Remember, do not listen to the mannequins that whisper inside your head.