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

Key 2
Single-player alternative to Key — playable solo, no multiplayer required. Shares Strategy and Indie with Key.
Spend hours having fun exploring this ever-growing maze. In Key 2, with each level beaten, the maze gets bigger and more hard. Dodge slimes, spikes and traps, find the key and open the door before time runs out.
- 2

Fallen's Challenge
Single-player alternative to Key — playable solo, no multiplayer required. Shares Strategy and Indie with Key.
Experience a Sokoban game like no other! Unique combat, gameplay, puzzles, music, pixel-art, and cutscenes. With the powers of the gems, go on a journey to discover ascension!
- 3

Flint
Single-player alternative to Key — playable solo, no multiplayer required. Shares Indie and Adventure with Key.
A action-adventure game with a top down perspective and a heavy emphasis on story. Become the legendary Knight of Hamarolf and take on a myriad of foes from the Golden Oath to save the world from evil's reign while engaging with memorable characters and a thrilling combat loop.
- 4

Dungeon Diver
Single-player alternative to Key — playable solo, no multiplayer required. Shares Indie and Adventure with Key.
An arcade-like maze crawler full of treasures and traps!
- 5

Eternal Damnation
Single-player alternative to Key — playable solo, no multiplayer required. Shares Strategy and Adventure with Key.
Conquer, pillage and determine the fate of a fantasy world in Eternal Damnation, a hybrid real-time strategy RPG that places the ultimate power in the hands of the player. Fight back against a dominant evil or destroy it and take the world for yourself - the choice is yours.
- 6

Keep the Light
Single-player alternative to Key — playable solo, no multiplayer required. Shares Indie and Adventure with Key.
Keep the Light is a 2D top-down pixel art dungeon crawler. Descend beneath a quiet village into an ancient, shadow-consumed sanctuary. Master light mechanics to freeze entities lurking in the dark, gather vital resources, and protect the town above from the horror buried below.
- 7

Survive the Jurassic
Single-player alternative to Key — playable solo, no multiplayer required. Shares Strategy and Indie with Key.
You're placed in a small, secluded house hidden deep within a dense jungle teeming with danger. The calm is short-lived as the ground shakes and distant roars grow louder—dinosaurs are closing in. Your only chance is to navigate the confined space, avoid detection!
- 8

The Chenwei Unveiler
Single-player alternative to Key — playable solo, no multiplayer required. Shares Indie and Adventure with Key.
Breaker of Clouds is a dark medieval single-player action game: scour, fight, and extract by day; hold the tower against the cloud tide by night—survive to the next dawn through tough choices in building, troops, and builds.
- 9

Gos Castle Runner
Single-player alternative to Key — playable solo, no multiplayer required. Shares Indie and Adventure with Key.
Run against time, jump holes and saws before time runs out. Gos Castle Runner it's a 2D platform game of running and jumping. In this game, you control a small ghost that has to pass through the castle by jumping holes and dodging saws to reach the end of the level.