Single-player games like There's Nothing Underground
Below are 9 single-player Steam games similar to There's Nothing Underground, 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 There's Nothing Underground page.
Ranked picks
- 1
MUTAGEN
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Action and Indie with There's Nothing Underground.
Explore a lush, interconnected alien ecosystem that reshapes itself each time you die. Absorb mutations from your fallen kin to reach new areas and adapt to your surroundings. Study the environment to find your own solutions, and unearth the planet's many secrets.
- 2
Relic Light
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Indie and Adventure with There's Nothing Underground.
A pixel-art 2D puzzle platformer with Metroidvania exploration. Join starfarer girl Ling Ao'ao as she meets AI girl ALICE in the ruins of humanity at the universe's end. Befriend companions, gather abilities, solve intricate contraptions, and uncover the cosmos's truth.
- 3
Lost Vulcan
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Action and Indie with There's Nothing Underground.
Lost Vulcan is a roguelite platformer with the bite of a classic arcade cabinet. Raid the Vulcan, a derelict ship packed with treasure, traps and seven bosses. Handcrafted rooms deal a different gauntlet every run — go alone, or split the loot in local co-op.
- 4
InOut
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Action and Indie with There's Nothing Underground.
A minimalist puzzle platformer where each level is more than they seem. Change your perspective on levels to discover new areas. Explore the world to unearth its hidden secrets.
- 5
Oreflux
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Action and Indie with There's Nothing Underground.
Oreflux is a fast mining roguelite where you have to battle with time to fullfill your daily mission. Upgrade your gear, create synergies with dozens of unique items and become a millionaire!
- 6
Quarion
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Indie and Adventure with There's Nothing Underground.
A short 2D pixel-style metroidvania where you explore, fight bosses, aquire items and abilities and find secrets. Inspired by games such as You Have to Win the Game and VVVVVV.
- 7
Katanaut
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Action and Indie with There's Nothing Underground.
Katanaut is a fast-paced, Metroidvania-inspired action roguelite blending fluid combat and cosmic horror. Slash, dodge, and wield powerful abilities as you battle through a station sprawling with twisted, once-human horrors. Adapt, survive, and descend into the shadows to uncover dark secrets.
- 8
The Darkest Files
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Indie and Adventure with There's Nothing Underground.
Germany, 1956. The war is over, but justice is not served. Former Nazis walk free, while their victims lie in unmarked graves. As a prosecutor, you'll unearth long-buried evidence, confront witnesses and hunt down perpetrators. Will you have the courage to bring these "ordinary men" to court?
- 9
SphereCats
Single-player alternative to There's Nothing Underground — playable solo, no multiplayer required. Shares Indie with There's Nothing Underground.
A merge puzzle game about spherical cats, with a twist. Play the classic suika experience or try new variations every day!