Free games like Astrobuilder
Below are 8 free-to-play Steam games similar to Astrobuilder, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Astrobuilder page.
Ranked picks
- 1
Magic Archery
Free-to-play alternative to Astrobuilder — no purchase or trial window. Shares Simulation with Astrobuilder.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
- 2
Paper Lily - Chapter 1
Free-to-play alternative to Astrobuilder — no purchase or trial window.
Paper Lily is an RPG horror game in which you can solve puzzles in different ways. Explore a hidden world, meet strange characters, and guide Lacie as she attempts to find answers about her unusual condition.
- 3
Project Kat - Paper Lily Prologue
Free-to-play alternative to Astrobuilder — no purchase or trial window.
Project Kat is a short, unconventional RPG horror game in which there is always another way. Solve puzzles, make friends (or not), and guide Kat as she attempts to uncover the mystery behind a strange golden letter.
- 4
Die in the Dungeon: Origins
Free-to-play alternative to Astrobuilder — no purchase or trial window.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 5
The Riftbreaker: Prologue
Free-to-play alternative to Astrobuilder — no purchase or trial window.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 6
The Last Sovereign
Free-to-play alternative to Astrobuilder — no purchase or trial window.
Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.
- 7
The Sims™ 4
Free-to-play alternative to Astrobuilder — no purchase or trial window. Shares Simulation with Astrobuilder.
Play with life and discover the possibilities. Unleash your imagination and create a world of Sims that’s wholly unique. Explore and customize every detail from Sims to homes–and much more.
- 8
Muck
Free-to-play alternative to Astrobuilder — no purchase or trial window.
Muck is a survival-roguelike. Collect resources, find items & build a base to survive for as long as you can.