Crystal Keep
Set towers around the crystal and hold the arches as each wave arrives with more than the last.
Desktop recommended — this build is played with a keyboard.
About this build
Crystal Keep is a 2D tower defense. Setting: stone keep courtyard. Style: parchment and bronze. It runs entirely in the browser and loads no account, no install and no runtime model call.
- GENRE
- tower defense
- SETTING
- stone keep courtyard
- STYLE
- parchment and bronze
- PLAYERS
- 1 player
- INPUT
- mouse or tap
- LICENCE
- Original build
Why it's on the shelf
The mode twist is placement: you build a ring of towers around a crystal instead of dodging as a single character. Waves arrive, you hold, then you spend what you earned on upgrades before the next one. Oak, parchment, bronze and heavy stone arches carry the medieval theme. Suits players who like a plan more than a scramble.
How to play
Click or tap to place towers · choose upgrades. Click the frame once if the game needs keyboard focus, and use the fullscreen button above for a bigger view.
- place towers around the crystal
- hold against rising waves
- spend earned upgrades
Paid service
Change the theme, the twist, or the whole brief
The build above is the shelf version. If you want it re-skinned for your brand, retuned for a different audience, or extended with new mechanics, we quote each job by hand and deliver a new standalone build.
- Re-skin — palette, sprites, audio, logo and end screen.
- Retune — difficulty curve, level length, controls, mobile layout.
- Extend — extra enemy types, modes, scoring, save data.
Paid exports and rebuilds are in development. Nothing is charged yet — browse and play the shelf while we finish the request desk.
Source and licence
This is an original build made for AI Game Maker. It is covered by our terms of use; the code is not open source.
Original build by AI Game Maker
Build checked in Chrome on 15 Nov 2026. If it fails to load, tell us.