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ActionAdventureCasualIndieSimulationStrategy by Door 407

Diplomacy is Not an Option

Diplomacy is Not an Option is a medieval fantasy RTS where you command a town against endless waves of enemies — thousands of units attacking simultaneously in battles that escalate toward the absurd. You build defenses, raise armies, and manage resources between assaults. The Steam Workshop enables custom maps and scenarios. Developer Door 407 targets players who enjoy being overwhelmed by escalating scale.

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Diplomacy is Not an Option

Steam reviews

10,859 of 12,691 Steam user reviews are positive (85.6%) and Steam's own label is “Very Positive”, according to Steam's review summary for Diplomacy is Not an Option at the last data refresh.

Good for

  • RTS players who want base-building focused on escalating wave defense at extreme unit counts
  • Players who find emergent chaos in large-scale battles entertaining rather than frustrating
  • Steam Workshop users who want a modifiable platform for custom scenarios
  • Fans of medieval setting strategy without turn-based complexity

Avoid if

  • You prefer precise tactical RTS over chaotic mass-scale battles
  • Base-building without a narrative campaign feels purposeless
  • The game's intentional difficulty spikes and 'unfair' wave escalation are not your style
  • You need multiplayer — this is single-player only

Is Diplomacy is Not an Option an indie game?

Yes. Steam lists Diplomacy is Not an Option under the "Indie" genre, and its publisher is not on this site's major-publisher list.

  • Steam genre tags on record: Action, Adventure, Casual, Indie, Simulation, Strategy — includes "Indie".
  • Developer: Door 407.
  • Publisher: Door 407 — same as the developer, i.e. self-published; not on this site's major-publisher list.

The rubric, its limits and the publisher list: methodology.