Single-player games like Underwater battles
Below are 16 single-player Steam games similar to Underwater battles, 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 Underwater battles page.
Ranked picks
- 1
Doomsday Defense Line
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
This is an innovative game that combines strategy, action and character development. David to the frontlines of the plant-animal alliance. Engage in fierce defensive battles against the powerful zombie horde, and uncover the fascinating stories behind every precious character in this world.
- 2
Tanks Etc.
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Casual with Underwater battles.
Tanks Etc. is a modern reimagining of co-op overhead arcade classics; it offers classic gameplay while adding in depths of strategy to keep players reinventing strategies for waging war with their friends.
- 3
Spirit of the Dome
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Casual with Underwater battles.
Defend against endless waves of enemies and dark forces across a decaying world in this RTS styled tower defense game!
- 4
BALL MACHINE
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
BALL MACHINE is real-time strategy driven by pinball. Launch creature marbles, gather red, green, and blue paint energy, and buy units, cartridges, upgrades, structures, and tactical tools. Command the battlefield against the standard AI or asynchronous builds formed from your own past decisions.
- 5
Princess Vs Zombies: Mermaid Curse
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Join the little mermaid Marina on a quest to save the Castle of Stories from the dreadful Mist. Harness the magic of Fairy Dust to summon the memories of classic fairy tale characters, defeat corrupted creatures, and ensure that the world of fairy tales is not erased forever!
- 6
SPUM TD
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
'SPUM TD' is a 2D strategy game that combines Auto-Chess and Tower Defense. Hire units from a randomized shop and match attribute and class synergies to build a powerful formation. Fend off pouring waves of enemies and complete your ultimate deck!
- 7
Microcosmum: survival of cells
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Microcosmum: survival of cells. Join the wonderful and amazing world of microorganisms.
- 8
Door Kickers
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Door Kickers is an innovative realtime strategy game that puts you in charge of a SWAT team and lets you command them during a tactical intervention.
- 9
TOP TRUCK DRIVER
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Indie and Casual with Underwater battles.
TOP TRUCK DRIVER - a car simulator with a side view, made in 2D hand-drawn graphics.
- 10
Jetpack astronaut
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Indie and Casual with Underwater battles.
Jetpack Astronaut - 2D indie game with arcade elements, made in stylized graphics.
- 11
Maya Treasures
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Maya Treasures - a game in the well-known genre "three-in-a-row", made in bright hand-drawn graphics.
- 12
Aero Battle
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Indie and Casual with Underwater battles.
Aero Battle - indie simulator of air battles, executed in 2D hand-drawn graphics.
- 13
Secrets of Egypt
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Secrets of Egypt is a casual puzzle game made in 2D graphics.
- 14
Fruit Juice
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Fruit Juice - a game close to the genre 3 in a row, made in 2D hand-drawn graphics.
- 15
Underwater Life
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Indie and Casual with Underwater battles.
Underwater Life is an indie simulator game made in 2D graphics with pleasant musical accompaniment.
- 16
Throw Knives
Single-player alternative to Underwater battles — playable solo, no multiplayer required. Shares Strategy and Indie with Underwater battles.
Throw Knives is a new casual and addictive retro-style game that will help pass the time at lunch, at work, during insomnia. Its essence is to compete in throwing knives at a tree. Sounds simple, but it's actually not that easy. Try to hit the target without hitting other knives.