Free games like Space Empires III
Below are 8 free-to-play Steam games similar to Space Empires III, 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 Space Empires III page.
Ranked picks
- 1
Battle for Wesnoth
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
The Battle for Wesnoth is an open source, turn-based strategy game with a high fantasy theme. Explore the four corners of Irdya in seventeen solo campaigns and dozens of multiplayer maps, taking part in countless adventures as you go.
- 2
Galcon 2: Galactic Conquest
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game!
- 3
Girls' Frontline
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
As a Commander for Griffin & Kryuger PMC. Navigate faction power struggles, deploy forces strategically, and work to restore order in a war-torn world.
- 4
Chess Evolved Online
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
secretly the most overpowered game in existence
- 5
SOVL: Fantasy Warfare
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
SOVL is a ruleset for playing fantasy wargames. It can be played with miniatures on a table or digitally on Steam.
- 6
Miscrits: World of Creatures
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
After years of absence, Miscrits is back and better than ever! Return to the world of Miscria and capture hundreds of iconic Miscrits. Train your Miscrits to their strongest forms and put a stop to the Magicites, who threaten to eliminate all Miscrit life from the world!
- 7
Mythgard
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
Welcome to Mythgard, a fantasy cyberpunk CCG of heroes, gods, and mythical beasts. Master the unique lane and mana systems in your rise to the top or enjoy team play with a friend. New players can use the code WelcomeChallenger to get 20 free packs and more to start their journey.
- 8
Die in the Dungeon: Origins
Free-to-play alternative to Space Empires III — no purchase or trial window. Shares Strategy with Space Empires III.
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!