Fortress Merge

Merge buildings, upgrade your defenses, and protect your fortress from endless waves of zombies. Plan each move carefully, adapt your strategy, and survive as long as you can.

At a glance

• Platform: Windows.
• Genres: Casual, RPG, Strategy, Free To Play.
• Release date: Sep 4, 2026.
• Steam user reviews: No user reviews.
• Delivered as a Steam library entitlement — activation is handled by Steam.

Minimum

System requirements as published by the developer on Steam.

Activate on Steam

• Open the offer above — it takes you to this game's official Steam store page.
• Buy it there, or if you bought a key elsewhere, open Steam and choose Games → Activate a Product on Steam.
• Enter the product code exactly as it was issued to you.
• The game appears in your Steam library — download and play.

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