Single-player games like Kill A Million Rats
Below are 14 single-player Steam games similar to Kill A Million Rats, 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 Kill A Million Rats page.
Ranked picks
- 1
9 Lives to Defend
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Indie with Kill A Million Rats.
Face a pest infestation and survive until Loki's parents return from their trip! Defend the house with your 9 lives. Choose upgrades, play with different versions of Loki, with unique weapons and abilities to fight this war ^.^
- 2
Kitty's Last Adventure
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action with Kill A Million Rats.
Cute Survivor where you play as Kitty the cat aboard her flying cat-saucer🛸 created by her distraught human.
- 3
Cluckmech Oasis
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Strategy with Kill A Million Rats.
Cluckmech Oasis, a top-down shooting Roguelike tower defense game. Play as the Warcluck and lead your team of animal heroes in a fight for survival. Collect, build and upgrade defenses, and engage in intense battle against waves of plant enemies.
- 4
Lumencraft
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Strategy with Kill A Million Rats.
Lumencraft is a unique combination of a top-down, rogue-like shooter and base building with tower defense elements. Dig and light up dark halls of a fully destructible environment on procedurally generated maps and campaign levels to find precious Lumen - humanity's only chance for survival.
- 5
Thronefall
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Strategy with Kill A Million Rats.
A minimalist game about building and defending your little kingdom.
- 6
Vampire Survivors
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Indie with Kill A Million Rats.
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!
- 7
Monster Slayers
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Indie with Kill A Million Rats.
Monster Slayers is a rogue-like deck-building RPG adventure. Create a hero and choose your path through the perilous Northern Valley as you battle to become a true Monster Slayer.
- 8
Reverse Crawl
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Strategy with Kill A Million Rats.
A dungeon crawl where YOU are the dungeon! Lead your minions in tactical turn-based combat against the pesky heroes, and unlock a variety of evil Powers. With a dynamic campaign system and a branching storyline, "Reverse Crawl" lets you experience an RPG from a whole new angle!
- 9
Rogue AI Simulator
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Strategy and Indie with Kill A Million Rats.
Play as a Rogue Artificial Intelligence, in the sequel to the hit Flash game "I'm an Insane Rogue AI", played more than 4 million times! Your Prime Directive is simple: design a facility & manage human Test Subjects for the Dept of Science. But be careful: they NEVER stop being suspicious of you...
- 10
魔物讨伐团
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Strategy with Kill A Million Rats.
卡牌与RPG结合的无尽地牢探险之旅！最早融合Roguelike与卡牌的游戏之一。多达14种职业，真人配音+纸娃娃系统，完善的卡牌设计，各类魔物与随机事件等你体验！
- 11
Vertical Drop Heroes HD
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action with Kill A Million Rats.
Vertical Drop Heroes is a procedural platformer RPG hybrid with roguelike elements, where your hero adventures through randomly generated stages. Armed with a variety of skills and traits, you must use your cunning and reflexes to survive the dangers of each stage.
- 12
The Magister
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Indie with Kill A Million Rats.
The Magister is a murder-mystery card-battler RPG. Build and customise your deck to fight in battles, or use ‘Tactical Diplomacy’ to pacify those who stand in your way. Gather clues and discover motives as you investigate the death of your predecessor and unmask the guilty culprit.
- 13
The Magister - The First Two Days
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Action and Indie with Kill A Million Rats.
The Magister: The First Two Days gives you the chance to begin your investigation in this murder-mystery card-battler RPG. Build and customize your deck to fight in battles, or use ‘Tactical Diplomacy’ to pacify those who stand in your way. Gather clues and investigate the death of your predecessor!
- 14
Rogue AI: Idle Domination
Single-player alternative to Kill A Million Rats — playable solo, no multiplayer required. Shares Strategy and Indie with Kill A Million Rats.
A Rogue A.I. simulator that sits at the bottom of your screen. Take over the world while taking care of other tasks!