Single-player games like Grim Nights
Below are 12 single-player Steam games similar to Grim Nights, 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 Grim Nights page.
Ranked picks
- 1

Grim Realms
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy and Indie with Grim Nights.
A dark fantasy colony sim - will your colony end the Dread Storm and redeem mankind, or will they harness the dark powers for themselves? Guide your villagers as they struggle to stay alive in a world overrun by the undead.
- 2

They Are Billions
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy with Grim Nights.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 3

MarZ: Tactical Base Defense
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy and Indie with Grim Nights.
Build your defense base to fight back the undead hordes of Mars and secure the future of the red planet. MarZ is a game of strategy and tactical defense where you must carefully manage your crew and resources as you try to uncover the terrible secrets of the undead.
- 4

Zombie Defense Shelter
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy and Indie with Grim Nights.
You control an elite soldier of the future guarding the entrance of the shelter, which is besieged by crowds of zombies.
- 5

Idle Towers
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy and Indie with Grim Nights.
An idle survival game with tower defense mechanics. Build your own perfect defese and face infinite waves of enemies!
- 6

Age of Darkness: Final Stand
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy with Grim Nights.
Age of Darkness: Final Stand is a dark fantasy survival RTS where you must illuminate, build and defend humanity’s last bastion against hordes of Nightmares. Set in the remnants of a kingdom consumed by a deadly fog, you decide. Will you hide in the light? Or take back your world.
- 7

Terrafort
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy with Grim Nights.
A procedurally generated sandbox survival game with RTS elements.
- 8

Phoenix Hope
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Strategy and Indie with Grim Nights.
Phoenix Hope is a pixel art 2D real-time, side-view strategy game in which you must develop your colony during the day and repel waves of monsters at night.
- 9

KINGDOMS
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Indie with Grim Nights.
KINGDOMS is a procedural medieval RPG in a randomly generated open world. The main feature of KINGDOMS is a smart AI system that completely controls NPC behavior. As the player, you can fully interact with this massive world and become any person you want to be.
- 10

Break the Empire
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Indie with Grim Nights.
Fight your way to the capital and slay the emperor! Choose from a variety of characters with unique spells and skills! Featuring permadeath, interactable terrain, distinct builds, wild combos, and endless replayability.
- 11

Hollow Island
Single-player alternative to Grim Nights — playable solo, no multiplayer required. Shares Indie with Grim Nights.
Shape your own destiny: Explore, dig for riches, fish, grow crops, cook food, brew and sell potions, expand your property, fight monsters, build camps and hoard your treasures!
- 12

Mirklurk: Every Step Matters
Single-player alternative to Grim Nights — playable solo, no multiplayer required.
You've been exiled to The Mirk - an unforgiving swampland where every step could be your last. You must constantly make choices: what paths to take, which tree to shelter under, what beasts to engage or avoid, what items to bring into the darkness of dungeons, and what treasures to leave behind.