A dark medieval tower defense. Build walls, arrow towers, bombards, and a castle against 13 escalating enemy types across 8 maps. Adaptive music and economy reshape every run. 4 difficulty modes, 24 Steam achievements, cloud saves, first-class controller support.

<p class="bb_paragraph" >A 3D real-time tower defense survival game inspired by Age of Empires II's &quot;Art of Defence&quot; custom campaign. Build a medieval stronghold from a single resource - gold - and defend it through  minutes of escalating siege.</p><h2 class="bb_tag" >Features</h2><ul class="bb_ul"><li><p class="bb_paragraph" >9 buildings - Arrow Towers, Bombards, Castles, Walls, Markets, Town Centers, Outposts, and the University tech tree</p></li><li><p class="bb_paragraph" >13 enemy types - from Swarmers to Battering Rams that smash through stone</p></li><li><p class="bb_paragraph" >7 unique maps - moats, forests, river crossings, canyons, marshlands</p></li><li><p class="bb_paragraph" >Multiple difficulty modes - With tuned starting gold and enemy scaling to match your playstyle and experience</p></li><li><p class="bb_paragraph" >7 research trees, 21 upgrades - meaningful synergies that reshape your strategy</p></li><li><p class="bb_paragraph" >27 Steam achievements - including challenge runs (no walls, arrow-only, no research, perfect defense)</p></li><li><p class="bb_paragraph" >Mouse and keyboard support, partial controller support</p></li></ul><h2 class="bb_tag" >Strategy depth</h2><p class="bb_paragraph" >Place Outposts to buff nearby towers. Stack Reinforced Walls research with Fortified Foundations for 4.5x wall HP. Farm enemies with Bounty research. Or rush a Castle and hope for the best. Every match is a series of compounding economic and defensive choices.</p><h2 class="bb_tag" >Win condition</h2><p class="bb_paragraph" >Survive the full timer. Lose all your Town Centers and Castles, and the realm falls.</p>

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Hold the Keep Achievements