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Castle Constructor

Also known as Castle Constructor, castle constructor, castle-constructor

Build and defend using a modular system of castle blocks. Fend off enemies who will climb over and break through your defenses. Collect new blocks and research techs to improve their strengths. From lowly soldiers to powerful siege weapons; defeat them all as you strive to protect your kingdom.

Last update
17 Jun 2026
Players now
0
Original sources
1
Latest update
Announcement

v1.2.61.2.6 Patch

A small patch just to fix a couple reported issues. As usual let me know if you encounter any issues with the update. Seaside level had an extra center tile. This resulted in spawner blocks being unable to send units to…

1 changeGameplay
Latest updates

Update history

Browse past updates and patch notes for this game.

21updates

Gallery

In-game media

Achievements

Community progression

Top picks from 9 Steam achievements, sorted by player unlock rates.

  • The First StepBeat the first level of the campaign52.5%
  • Just Getting StartedBeat enough waves in endless to unlock a new level35.4%
  • Feeling CreativeTry out the creative game mode29.0%
  • We Have the Technology!Purchase one of the techs at the top of the tech tree21.7%
  • Tri-ing it outAdd a 3 slot token to your deck20.6%
  • Extra CreditCheck out the credits15.8%