Single-player games like Diplomacy is Not an Option: Shareware
Below are 11 single-player Steam games similar to Diplomacy is Not an Option: Shareware, 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 Diplomacy is Not an Option: Shareware page.
Ranked picks
- 1
Diplomacy is Not an Option
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy with Diplomacy is Not an Option: Shareware.
Diplomacy is Not an Option is a strategy game set in a medieval fantasy world. Build your town and defenses, raise huge armies and fight against massive hordes of enemies. How long can you survive?
- 2
Towers & Goblins: The Last Stand
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Build towers, manage resources, and lead units to defend your kingdom against goblins. Every decision you make determines your kingdom's fate.
- 3
Bergfried
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Build realistic medieval castles and defend them against rival knights. Bergfried is a strategy game featuring organic castle building and tactical siege battles. Manage your lands, plan your defenses and lead your troops to victory!
- 4
CastleOn Scriptum
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Build a castle and defend it from your enemies! Construct towers, place traps, train and command units in this historical, manuscript-themed mix of Tower Defense and classical Real Time Strategy.
- 5
Siege of Irdor
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Siege of Irdor is a city-builder strategy game set in dark medieval times, where fantasy and reality collide. Build by day and defend the sieges by night to survive against the armies of darkness.
- 6
Bread & Bravery
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Return to the era of knights and castles in a uniquely satisfying mix of Settlement Building, RTS and Castle Simulation genres. Manage complex and realistic medieval production chains, build your army and defences, satisfy the King and lead your people to prosperity. Will you succeed as a new lord?
- 7
Northgard: Definitive Edition
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Northgard: Definitive Edition is a critically acclaimed real-time strategy game based on Norse mythology. Lead your clan, uncover the secrets of a mysterious newfound continent and defeat your enemies to conquer the Throne!
- 8
Here Comes The Swarm
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Here Comes the Swarm is a survival RTS with a pause button! Create your strategy, build, manage, and defend your settlements at your own pace. Take the fight to the hive mind and lead expeditions to deliver a deadly blow and eradicate your foes. Will you reclaim Ulora from the relentless Swarm?
- 9
URBO
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required.
URBO is a relaxing cozy city-building puzzle game where you create beautiful towns on floating islands. Begin with an empty grid of landscape, choose an architectural style and build. Watch the population grow and the city flourish.
- 10
Abra-Cooking-Dabra
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy and Simulation with Diplomacy is Not an Option: Shareware.
Abra-Cooking-Dabra is a cooking card game. Manage ingredients and make British dishes to keep toves, borogoves, and mome raths fed. Meet timers and fulfill puzzling orders despite the angry wacky Cat being your boss. You are Wonderland's new chef.
- 11
URBO: Dream One
Single-player alternative to Diplomacy is Not an Option: Shareware — playable solo, no multiplayer required. Shares Strategy with Diplomacy is Not an Option: Shareware.
URBO: Dream One is a meditative puzzle game where you build houses around the mysterious Tower. Let your mind wander through visions of an enchanted city on an island in the middle of the crystal clear waters of a vibrant lake.