Single-player games like Idle Fleet
Below are 8 single-player Steam games similar to Idle Fleet, 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 Idle Fleet page.
Ranked picks
- 1
Horizon Idle
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Simulation and RPG with Idle Fleet.
A space-themed idle RPG of skilling and crafting. Mine, refine, research, and automate your way from a lone ship to an industrial empire. Level skills to 100, engineer your fleet for auto-battler combat, and Warp to prestige. No energy gates, just numbers that climb forever.
- 2
A Game About Getting Bigger
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
A Game About Getting Bigger is a loot-driven incremental game about feeding a growing black hole. Destroy celestial bodies to make the black hole at the center grow larger and larger.
- 3
Void Core
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
Start as a microscopic speck, become the end of everything. Void Core is a minimalist sci-fi idle game where you control a black hole. Harvest matter, bend spacetime to automate your growth, and consume entire galaxies. Consume. Grow. Evolve.
- 4
Oil Island Hustle
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
Your on an island because you owe your best friend 1 million dollars. To pay him back, you extract all the oil and resources in here. Buy some robots to automate your work, repair your port and unlock new trade partners and starting hustling!
- 5
Astromental Incremental
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
Mesmerizing incremental idle clicker game about space. When objects collide, you receive matter. Use this matter to unlock and upgrade objects in your star system. Use powerful Abilities. Dive into the Prestige system (Warp) with a wide Skill Tree, and discover new star systems with new bonuses.
- 6
Pirate Treasure Hunt
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
Pirate Treasure Hunt is a short incremental treasure hunting game. Explore islands, uncover rare treasures and ancient artifacts, upgrade your expedition and become the richest pirate on the seas.
- 7
Mine Empire
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
In Mine Empire, start with basic mining and expand by gathering resources, upgrading equipment, and deploying machines for full automation. Blast through deep mineral veins with explosives, unlock rebirth upgrades and advanced technology, and build your own powerful mine empire.
- 8
Odyssée Stellaire
Single-player alternative to Idle Fleet — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Fleet.
Board your ship and push the boundaries of space exploration in this contemplative space incremental. Gather resources, develop your technology, and travel from the Moon to the edge of the solar system to answer a mysterious signal from the stars.