Games Like Diplomacy is Not an Option

Diplomacy is Not an Option

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?

★ HERE COMES THE SWARM ★ FINAL OUTPOST: DEFINITIVE EDITION ★ THEY ARE BILLIONS ★ CATACLISMO ★ FROM GLORY TO GOO ★ GORD ★ CALYX ★ NIGHT IS COMING ★ DIPLOMACY IS NOT AN OPTION: SHAREWARE ★ ALIEN MARAUDER ★ AFTER LONG NIGHT ★ KINGDOM WARS 2: DEFINITIVE EDITION ★ WE ♥ IT 
1

Here Comes The Swarm

86% 👍 OF 300
About This Game

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?

2

Final Outpost: Definitive Edition

78% 👍 OF 199
About This Game

Final Outpost is a survival strategy base-builder. You lead the last survivors of the apocalypse. Assign roles, craft tools, and manage resources carefully. Construct buildings, level up your citizens, and fortify your town against hordes of zombies. How many days can you survive?

3

They Are Billions

85% 👍 OF 51K
About This Game

They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

4

Cataclismo

89% 👍 OF 4.2K
About This Game

Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.

5

From Glory To Goo

97% 👍 OF 1.7K
About This Game

From Glory To Goo is a Sci-Fi survival RTS set on an alien world. Serve as humanity's bulwark by establishing a colony and supporting your colonists still in orbit. But beware, for The Goo, a relentless and shape-shifting force approaches from all sides, even above and below.

In this game, you can…

  • …press one button to auto-rebuild every destroyed structure at a discount, using a hologram that marks exactly where everything used to be.
  • …retrofit your colony ship mid-run into cannons, factories, labs, and drop pods that send troops down to the map.
  • …play a Warlord captain who hijacks the normal faction and brings his own unique roster of units.
6

Gord

54% 👍 OF 1.0K
About This Game

Gord is a single-player adventure strategy. To survive, you must build, but to prevail, you must conquer the darkness beyond the gates. In this dark fantasy world, you must complete quests while managing a populace whose personal stories and well-being decide the fate of your tribe.

7

Calyx

88% 👍 OF 426
About This Game

A strategy game with a new kind of enemy, Calyx puts you in charge of a space mining outpost, locked in battle against powerful plant-aliens. Build your base, gather resources, assemble your forces, and take on the Calyx. With only an out-of-date AI for company, can you survive?

In this game, you can…

  • …fight a living plant-alien infestation that floods the map, slips through cracks, and takes territory if you don't cut it back.
  • …build a power grid where a bad energy call can shut down key defenses and turn a stable front line into an instant breach.
  • …unlock an orbital laser and burn a whole infested zone, then roll in with a multi-turret tank to finish clearing the map.
9

Diplomacy is Not an Option: Shareware

92% 👍 OF 735
About This Game

Diplomacy is Not an Option: Shareware is a free prequel to the original game. In a medieval fantasy world, you are to build settlements, raise huge armies, and defend against massive hordes of enemies. Learn how Ironbrow clan shaped the world's map the first time - if you survive, that is.

In this game, you can…

  • …face 25,000 enemies hitting your castle walls at once.
  • …freeze time mid-siege to breathe, reposition, and issue orders before unpausing into the chaos again.
  • …harvest soul crystals from the dead, build magical monuments, then fire beam spells and summon Dark Knights to clean up survivors.
REL Apr 30, 2025 FREE ON STEAM See This Game →
10

Alien Marauder

62% 👍 OF 340
About This Game

“Alien Marauder” is a real-time strategy game with survival and confrontation theme. In this game, you will be the leader to a treacherous alien planet, build and defend base to survive against the vexan waves. Make the right decision!

11

After Long Night

77% 👍 OF 451
About This Game

After Long Night is a sandbox survival RTS. Build and fortify your base, scavenge every corner for vital resources, craft deadly weapons, and raise a militia to fight off relentless zombie hordes that strike every night. In this world, scavenging isn't just survival—it's strategy, power and war.

12

Kingdom Wars 2: Definitive Edition

65% 👍 OF 452
About This Game

An intense real-time strategy game set in a dark fantasy world of Orcs, Elves and Dragons. Kingdom Wars 2 combines the best of Zombie survival and crafting with complex fast-paced city building. Fight massive siege battles that turn beautiful landscapes into gory blood-soaked battlefields.