Single-player games like S.U.B.
Below are 9 single-player Steam games similar to S.U.B., 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 S.U.B. page.
Ranked picks
- 1
IronWolf VR
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Indie with S.U.B..
IronWolf VR is a roomscale submarine game playable either singleplayer or online co-op with motion controls. Built from the ground up for VR, each part of the submarine has been crafted for an optimal VR experience.
- 2
Darkwater
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Indie with S.U.B..
Darkwater is a cooperative extraction horror game for 1-4 players. Command a submarine trapped under the ice of an alien planet. Battle enemy vessels and deep sea abominations as you hunt for resources. Do what it takes to survive.
- 3
My Rusty Submarine - New Waters
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Indie with S.U.B..
Grab a friend for a deep sea dive. Repair your submarine and try to get as far as possible with this old and rusty, but charming submarine!
- 4
Sumo Tanks
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Indie with S.U.B..
SUMO TANKS is the tank arena fighter where 2-8 players shoot and ram each other to be the last standing in the ring. Select your tank and claim the title of GRAND SUMO TANK CHAMPION. Only one person needs to own the game, and the rest can join for free using the demo.
- 5
Technocide
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Indie with S.U.B..
Technocide is a vertical scrolling shoot 'em up with a heavy emphasis on player weapons and abilities. You must not let enemies past you and reach your mothership! You will need quick tactical thinking as you weigh your weapons' strengths and weaknesses against your enemies and their positioning.
- 6
Retro Wars
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Casual with S.U.B..
Take on an entire army in this 80s inspired retro top down vertical scrolling shooter. Be a one man war machine or take a friend into battle for some fun 2 player local co-op.
- 7
BULLET PARTY
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Indie with S.U.B..
The party co-op shoot ’em up! Become the king of the night club! Go alone or group your friends! Shoot the party crashers down!
- 8
Toy Tanks
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Action and Adventure with S.U.B..
Jump, Dash, and Shoot your way to victory in this 3D, Physics based, Tank game! Choose from several different types of Tanks, Each with their own unique set of stats and abilities! Work together with up to 4 of your friends to defeat, unlock, and discover all this adventure has to offer!
- 9
Warmth
Single-player alternative to S.U.B. — playable solo, no multiplayer required. Shares Indie and Casual with S.U.B..
Help keep your loved ones warm and happy in the cold outside world by spreading the heat from the main campsite to all other family members! Create a trail of warmth and help grandmas and dogs alike in this fun and wholesome puzzle game.