Single-player games like U-Boot: The Board Game - Digital Edition
Below are 8 single-player Steam games similar to U-Boot: The Board Game - Digital Edition, 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 U-Boot: The Board Game - Digital Edition page.
Ranked picks
- 1

Battleships and Carriers 2: 1940-1945
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Strategy and Indie with U-Boot: The Board Game - Digital Edition.
Casual WW2 naval turn-based strategy: attack/defend, search & destroy, build ships, subs and aircraft. Clear & simple combat and move. Fast, re-playable board game style strategy, with 70 unit types. More than 40 missions, death-matches & campaigns (Destroy, Conquer, Defend, Escort, Kill-Them-All).
- 2

Crash Dive
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Strategy and Simulation with U-Boot: The Board Game - Digital Edition.
WWII tactical submarine combat! Take command of a U-boat prowling the Atlantic in search of enemy convoys to sink. Sneak past the escorts and torpedo the transports. Or surface and use your deck gun in a daring night attack.
- 3

Pixel Puzzles World War II Jigsaw Puzzles
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Strategy and Indie with U-Boot: The Board Game - Digital Edition.
Pixel Puzzles, your number one place for digital jigsaws.
- 4

UBOAT
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Strategy and Indie with U-Boot: The Board Game - Digital Edition.
UBOAT is a simulator of a submarine from WWII era. It is a survival sandbox with crew management mechanics while its primary theme is life of German sailors. The boat is their home, but it can become their grave at any time.
- 5

Destroyer: The U-Boat Hunter
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Indie and Simulation with U-Boot: The Board Game - Digital Edition.
Destroyer: The U-Boat Hunter brings you an authentic and historically accurate destroyer simulation along with gripping anti-submarine warfare set in the turmoils of the Atlantic Ocean during World War II.
- 6

Steel Division: Normandy 44
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Strategy and Simulation with U-Boot: The Board Game - Digital Edition.
Steel Division: Normandy is a tactical real-time strategy (RTS) game that pits players against AI enemies in a single-player campaign -- or against several opponents in massive 10-on-10 multiplayer battles.
- 7

Silent Hunter® III
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Simulation with U-Boot: The Board Game - Digital Edition.
The king of submarine simulations returns with an all-new 3D engine, new crew command features, and more realistic WWII naval action than ever before. The movie-like graphics and simple, tension-filled gameplay make this the perfect game for the realism fanatic and the casual gamer.
- 8

Crash Dive 2
Single-player alternative to U-Boot: The Board Game - Digital Edition — playable solo, no multiplayer required. Shares Indie and Simulation with U-Boot: The Board Game - Digital Edition.
WWII Tactical submarine combat in the South Pacific