Single-player games like The Deep
Below are 10 single-player Steam games similar to The Deep, 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 The Deep page.
Ranked picks
- 1
Kalit
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
A unique survival adventure, animated in a 1930s rubber hose style! Fight to survive: capture creatures, farm, mine, and craft everything you need: from gear and vehicles to your base. Explore strange lands and an underwater world of shipwrecks, dangers, and hidden wonders.
- 2
Subnautica
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
- 3
Project Castaway
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares RPG and Casual with The Deep.
Project Castaway is a survival crafting title set in the Pacific Ocean. Live the life of a stranded castaway, with only yourself - and the island's inhabitants - for company! Sail the ocean, hunt, explore unique islands and gather resources as you fight for survival.
- 4
The Forest
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.
- 5
Stranded Deep
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
Take the role of a plane crash survivor stranded somewhere in the Pacific Ocean. Come face to face with some of the most life threatening scenarios that will result in a different experience each time you play. Scavenge. Discover. Survive.
- 6
Outbreak Island
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
Survive on a remote Island, where a mysterious Outbreak awakens bloodthirsty monsters at night. Craft, build and defend your base in the brutal world of Outbreak Island, an open-world sandbox survival horror game.
- 7
FarSky
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
FarSky is a short survival game in the depths of the Ocean. Collect all the pieces of your submarine and reach back the surface.
- 8
Subnautica: Below Zero
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie with The Deep.
Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.
- 9
Kukui
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie and RPG with The Deep.
Kukui is a psychological horror that will have you at the very edge of your seat. Explore and conquer three unique maze maps that will test your every wit. Collect pieces of memories and reconstruct a story that will have you begging for more.
- 10
Kukui 2
Single-player alternative to The Deep — playable solo, no multiplayer required. Shares Indie and RPG with The Deep.
Kukui 2 continues Kyle's story. In this psychological horror, you will test the limits of your mind with mind-numbing puzzles that will test your every ability. Help Marie's curiosity and keep her safe, fight bosses and unravel a story that has no equal in this genre.