Single-player games like Gem Rifts
Below are 10 single-player Steam games similar to Gem Rifts, 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 Gem Rifts page.
Ranked picks
- 1
Mindustry
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
An open-ended factory management game with RTS and tower defense elements.
- 2
Age of Darkness: Final Stand
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
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.
- 3
Age of Empires II: Definitive Edition
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
42 Civilizations, 229 Campaign Missions, Singleplayer, Co-Op, Multiplayer, In-Game Editor, Mods, Cross-play...It is good to be the king.
- 4
The Riftbreaker
Single-player alternative to Gem Rifts — playable solo, no multiplayer required. Shares Indie with Gem Rifts.
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.
- 5
Age of Empires IV: Anniversary Edition
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
Celebrating its first year of delighting millions of global players, the award-winning and best-selling strategy franchise continues with Age of Empires IV: Anniversary Edition, putting you at the center of even more epic historical battles that shaped the world.
- 6
Pioneers of Pagonia
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
Rebuild hope in a world that was lost in the fog. Lead your Pioneers across the isles of Pagonia, unite scattered tribes, raise thriving communities and discover the history of your people as you reclaim your world in the new story campaign.
- 7
Stronghold: Definitive Edition
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.
- 8
Stronghold HD (2012)
Single-player alternative to Gem Rifts — playable solo, no multiplayer required.
The original castle sim, Stronghold HD allows you to design, build and destroy historical castles. Engage in medieval warfare against the AI in one of two single player campaigns or online with up to 8 players.
- 9
Fantasy Survivors
Single-player alternative to Gem Rifts — playable solo, no multiplayer required. Shares Indie with Gem Rifts.
A rogue-lite where you fight thousands of creatures, unlocking characters and equipment, to challenge deeper levels. Team up with friends or go solo; all drops are instanced so you don't have to share. Satisfying gameplay combined with smart choices make one-more-run a no-brainer.
- 10
One Clone Left
Single-player alternative to Gem Rifts — playable solo, no multiplayer required. Shares Indie with Gem Rifts.
Team up with friends to fight hordes of zombies and mutants that roam post-apocalyptic earth. Need extra lives and allies to help you fight? Just clone yourself and your weapons! Protect your fabricator to become an unstoppable force, able to take on any mutant in your sights.