Single-player games like Harpoon
Below are 16 single-player Steam games similar to Harpoon, 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 Harpoon page.
Ranked picks
- 1
The Fishercat
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Casual with Harpoon.
Cats love fish so much, they started fishing.
- 2
Submarine War
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
Submarine War is a new action-packed submarine combat game that immerses players in the 3D action with unique game controls and 3D environments.
- 3
Trouble in Pacifica
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie and Casual with Harpoon.
Explore the Pacifica archipelago, different islands, secrets and villages await you...Earn money by fishing in a fishing mini-game. Hunt down the sea monster with your upgraded boat and save your home!
- 4
Subcraft
Single-player alternative to Harpoon — playable solo, no multiplayer required.
Subcraft is a 2-3 player co-op submarine adventure. Dive beneath a frozen world, explore dangerous caves, mine resources, fight monsters, and help rebuild civilisation.
- 5
Depth-Bound
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
🌊 A physics-based underwater 2D platformer. 🚀 Propel yourself out of the water, chain trajectories, and dive always more deeply. 📸 Photograph strange creatures and follow an expedition whose outcome remains uncertain.
- 6
Dragons Reef
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Casual with Harpoon.
Start sailing adventure by defending the Dragons Reef land from pirates, manage unique artifacts, customize character magic skills, watch out for underwater creatures, admire the beautiful foreign nature, get own dragon, collect loot. Top-down action RPG, tower defense and cartoon ships naval combat
- 7
Harpooner
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
Harpooner is an action-driven incremental fishing game where you hunt bizarre alien fish from a meteor crash. Grab your gear, grow stronger with every dive, and take down massive bosses to save Earth's ecosystem!
- 8
Spearfishing Simulator
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
A very realistic Spearfishing Simulator with a challenging gameplay.
- 9
Rescue Operation
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
Is a first-person shooter game. The game will follow the scenario of the game, and destroy the enemies in its path
- 10
2D Neon Cube
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
2D Neon Cube - it's beautiful and not difficult to pass the game. Exciting obstacles and graphical effects. Move the main character to the portal and try not to die!
- 11
3D Hardcore Cube
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
3D Hardcore Cube - this is not an easy platformer in which you want to get to the portal and not to fall into the trap. The game has boosters traffic boosters bounce, anti bounce, falling cubes, turrets and more!
- 12
SEARCH ALL - CATS
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie and Casual with Harpoon.
Is a hidden object game in which you need to find all the cats in a large location. Seals will be located in a variety of places, from the most prominent to barely noticeable places
- 13
Russian Roads
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
"Russian Roads" - this is amazing race on rough roads, on the dirt road and in the mud. Travel in different cars of the Russian car industry and try to come first!
- 14
Neon Hardcore
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
"Neon Hardcore" - this is a game that makes you freak out the player after each death of the player character. You need to manage the green cube and get to another green reference point. But it is very difficult, as the player interfere with the rotating saws and others obstacles red color.
- 15
Girl Blonde
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie with Harpoon.
Girl Blonde - It's a nice 3D platformer with a side view. In it you have to play for a girl-blonde and gather fruits, vegetables and other sweets! That would pass the level you must collect a certain number of items, but it is not easy to do because you will interfere with obstacles.
- 16
IN THE BUILDING: CATS
Single-player alternative to Harpoon — playable solo, no multiplayer required. Shares Indie and Casual with Harpoon.
is a game in which you have to find all the cute cats. Cats will hide in all houses. Search every corner of the room, move the pillows, open the nightstands, check the toilet... Cats can hide in the most unpredictable places.