Single-player games like Hell's Underground
Below are 9 single-player Steam games similar to Hell's 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 Hell's Underground page.
Ranked picks
- 1
Nightmare Flight
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
A first person horror game that takes place on an airplane. Play as a lone pilot that must survive three different horror scenarios. Check on passengers and noises in the plane, but do not leave the cockpit for too long, or you will plummet to your doom.
- 2
KLAWS
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
Embark on a chilling adventure through a mysterious forest on a cold Christmas Eve night, searching for ornaments to decorate a Christmas tree. But beware—something lurks in the snowy darkness…
- 3
Arachnoid
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
Arachnoid is a first person horror game about moving into a house and finding a giant spider infestation. Fix your house, walk to surrounding points of interest, and defend yourself with shotgun after finding it. In an immersive VHS style Arachnoid will pull you into this horrifying mystery.
- 4
Lost Alone Ultimate
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
Lost Alone Ultimate is a first-person psychological horror game designed to convey anxiety, distress, and terror. You will have to explore three different houses, avoid staying in the dark, and face moments of fear that will not give you respite.
- 5
IMSCARED
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
"I need a Heart in order to open it"
- 6
Apartment No 129
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
Emir, who has an interest in mysterious events, steps alone into the abandoned apartment known as "Apartment No 129" to trace the trail of a paranormal event that occurred in 2009 and shook the country. However, he will find himself in an unexpected confrontation within this horror apartment.
- 7
Last Neighbor
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
You play as a young thief who broke into the wrong house, he thought the place was empty because he saw the owners leaving with suitcases, but there was still somebody in the house. It could be dangerous so you have to get out fast.
- 8
Emily Wants To Play
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
It’s 11pm and the last house on your route. The windows are boarded up, the yard is overgrown, but the lights are on and the front door is open… strange place to deliver a pizza. You’re getting soaked from the rain, so you hesitantly step inside the house. You shouldn’t have done that.
- 9
Project Rebirth
Single-player alternative to Hell's Underground — playable solo, no multiplayer required. Shares Action and Indie with Hell's Underground.
Fight for your life in a high-security prison where dangerous experiments have unleashed a deadly mutation. Solve puzzles, hide from a crazy doctor, and survive intense encounters as you attempt to escape this nightmare.