Single-player games like Fortified Swiss
Below are 9 single-player Steam games similar to Fortified Swiss, 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 Fortified Swiss page.
Ranked picks
- 1
Brink of Extinction
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
Brink of Extinction is a challenging tower defense game set in the ruins of human civilization. Battle swarms of insects over 15 campaign levels and 8 continuous mode levels. At your disposal you have an arsenal of brutal weapons, ranging from machine gun turrets to plasma and rail turrets.
- 2
Dungeon Defenders
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
Create a hero from one of four classes to save Etheria in this 4-player coop Tower Defense Action-RPG. Includes Steam exclusive Portal gun & TF2 familiars!
- 3
Defend the Rook
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Strategy and RPG with Fortified Swiss.
A roguelike tactics board combat combined with tower defense elements. Defeat the invading hordes to stay alive and save the land! Enjoy more tactics than a normal TD game, combined with the added challenge of building towers and fighting off waves of enemies!
- 4
Templar Battleforce
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
An addictive mix of strategic combat and army building, with the precision of an RPG. Design your squad members' exact build of equipment and talents to create unique fireteam combinations. Step into the pilot suit of a Leviathan mech, lead the Templar Knights in turn-based tactical warfare.
- 5
Orcs Must Die! 2
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
You’ve tossed, burned and sliced them by the thousands – now orcs must die more than ever before! Grab a friend and slay orcs in untold numbers in this sequel to the 2011 AIAS Strategy Game of the Year from Robot Entertainment.
- 6
Dwerve
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
An epic action-adventure with tower defense combat! Dungeon crawl through a ruined kingdom, fending off hordes with turrets and traps! Punch them into pits! Pull them into spinblades! Zap and burn them!
- 7
Anomaly: Warzone Earth
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
Lead an armored squad through the perils of this reversed tower defense action-strategy game!
- 8
Tower Wars
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Action and Strategy with Fortified Swiss.
Tower Wars combines elements of tower defense, RTS, and all-out multi-player mayhem to bring you a completely unique experience, delivered with a fun and funny not-so-old world style!
- 9
Jellystar Empires: When Space Bunnies Attack!!
Single-player alternative to Fortified Swiss — playable solo, no multiplayer required. Shares Strategy with Fortified Swiss.
An area-control real-time strategy game, filled with auto-battling bunnies bent on destroying the human race! Explore space and uncover hand-painted planets. Research unique upgrades! Kill your friends! -er use diplomacy in multiplayer!