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

Defiled Survivors
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action and Early Access with Marine Survivors.
Slay the night creatures and save the church, you are the last hope! Defiled Survivors is a time survival medieval game with rogue-lite elements, where you choose your character's path and slay hundreds of enemies on your way.
- 2

Sharded World
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action with Marine Survivors.
Sharded World is a reversed bullet hell, rogue-lite, ARPG game combining simple gameplay and great rpg progression. Each level has its own unique features and challenges. Upgradable characters, weapons and orbs. Challenges, daily quests, and leaderboards. Fight, get stronger and defeat the Lich!
- 3

Spellbook Demonslayers
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action and Early Access with Marine Survivors.
Slay endless hordes of demons to protect the Cosmic Library! Steal their abilities, find powerful equipment, and unlock the secrets of each spellbook to become unstoppable! Will you be able to destroy the demonic legion?
- 4

Sodaman
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action with Marine Survivors.
Sodaman is a bullet-heaven roguelike where you play as a supersoldier fighting alien hordes with soda powers. Find game-breaking sodas and concoct custom cocktails. Discover planets, unlock weapons, sodas, cybernetics, power-up cards, and more. But first, crack open a cold one.
- 5

Halls of Torment
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action with Marine Survivors.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?
- 6

Slime 3K: Rise Against Despot
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action with Marine Survivors.
Welcome to Slime 3K, an unhinged roguelite bullet-heaven set in the Despot’s Game universe! Build a deck of crazy weapons, grow stronger and devour hordes of pink puny humans as a murderous jelly blob on a warpath of death, violence and pretzels.
- 7

Froguelike
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action and Early Access with Marine Survivors.
Your choices matter in Froguelike where you play as a frog on a mission to eat all the bugs. Level up, choose new tongues and upgrades, become unstoppable and run straight into the swarm! Unlock all frogs, tongues, items and chapters to become the most powerful frog in the pond.
- 8

Nuclear Throne
Single-player alternative to Marine Survivors — playable solo, no multiplayer required. Shares Action with Marine Survivors.
Nuclear Throne is a post-apocalyptic roguelike-like top-down shooter. Not 'the final hope of humanity' post-apocalyptic, but 'humanity is extinct and mutants and monsters now roam the world' post-apocalyptic. Can you reach the Nuclear Throne?