Single-player games like UNDERGROUND
Below are 8 single-player Steam games similar to 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 UNDERGROUND page.
Ranked picks
- 1

Zombie Claus
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
You find yourself in a big empty house. Around the Christmas lights, but no friends, no family, and only bad Santa. Solve the mystery of the protagonist.
- 2

The Telephone
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
The Telephone is a first-person psychological horror game that will transport you to a world governed by anxiety. You will have to explore the house in which you are locked and the mysterious town of Lonely Plain, searching for clues that can help Roberta regain her memory.
- 3

Project 13: Taxidermy Trails
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie with UNDERGROUND.
Project 13: Taxidermy Trails, a Walking Simulator set in a mesmerizing Taxidermy Museum. In this immersive experience, you assume the role of an kidnapped Probant forced to find a way to escape. Complete all 13 Walks to get out of this Nightmare.
- 4

Before Nightfall: Summertime
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
In this game you will walk through a beautiful summer forest in search for firewood
- 5

Hell Mission
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
There are 9 chapters in this game Players will play the most capable agent "Eva" to face a huge number of undead and powerful cyborg warriors. The operation of this game is very simple, with gorgeous movie-like visual effects, allowing players to experience shocking sensory stimulation.
- 6

Monkey See, Monkey Doo, Monkey Kiss You
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
Monkey See, Monkey Doo, Monkey Kiss You is a gripping first-person horror adventure. Stranded in a sinister forest, evade amorous monkeys while navigating treacherous paths. Face chilling encounters, uncover mysteries, and fight for survival in this pulse-pounding tale of fear and tension.
- 7

Cursed House
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
In the process of searching for real estate, he comes across a lucrative offer - a 2-storey house with a basement and an attic for only $295,000. After much hesitation, he contacts the seller and agrees to the deal. But what happened on the next day after the move, he was shocked.
- 8

ПОСЛЕДНИЙ ДЕНЬ В УРЮПИНСКЕ
Single-player alternative to UNDERGROUND — playable solo, no multiplayer required. Shares Indie and Adventure with UNDERGROUND.
THE LAST DAY IN URYUPINSK is an atmospheric walk through the post-Soviet courtyard to depressive music.