Single-player games like Fish Slayer
Below are 8 single-player Steam games similar to Fish Slayer, 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 Fish Slayer page.
Ranked picks
- 1

Shrimp.io
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Strategy with Fish Slayer.
A Shrimp Based Bullet Heaven. Kill creatures, Level up & pick from 3 upgrades to unalive thousands more.
- 2

Overdrive Breakout
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Strategy with Fish Slayer.
Control a rusted mech in a fast-paced top-down survival action game. Enter unknown areas, dodge enemy swarms, choose random weapons, skill upgrades, and passive modules, defeat bosses, unlock maps, and break through on the edge of overload.
- 3

Underwater DuO
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Indie with Fish Slayer.
In Underwater Duo, control a smashing turtle with your left hand and a blasting jellyfish with your right! Fight off waves of fierce fish, grow stronger, and see if your two hands can conquer the deep… or team up with a perfectly in-sync partner.
- 4

Rune Craft
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Strategy with Fish Slayer.
A horde-survival roguelite built around a rune-grid weapon system. Collect weapons, gems, and 100+ runes to reshape projectile behavior, elemental reactions, and weapon evolutions, forging a different screen-clearing build every run.
- 5

Vanquish Evil
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Indie with Fish Slayer.
Vanquish endless waves of challenging enemies in this fast-paced action! Combine upgrades to be even more powerful! Buy and equip Gear and Items for your customized builds and stats! Play as 6 different heroes in this Bullet Heaven vs Bullet Hell! Each hero has mechanically unique abilities!
- 6

The Last Admiral
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Strategy with Fish Slayer.
Command a fleet of warships in turn-based tactical battles. Push through a procedural galaxy, win fights, upgrade your fleet, and grow your empire. Lose a run, keep your ships and upgrades. 4 factions, 7 ship classes, 4 sectors, and endless mode. You are the Last Admiral.
- 7

Supercat Survivors
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and Strategy with Fish Slayer.
Meow! This is a cat-themed Survivor-like game where you control an adorable Supercat! Battle monsters to level up, collect items, upgrade weapons, and experiment with strategic builds to fight off invading creatures threatening Meow Star.
- 8

King of Exams
Single-player alternative to Fish Slayer — playable solo, no multiplayer required. Shares Action and RPG with Fish Slayer.
King of Exams is a rogue-lite game where you play as a primary school student reliving your school journey.Prepare stationery for various exams,claim your mom’s back-to-school gift pack,face middle school and college entrance exams,join academic competitions,and strive to reach the peak of life.