Really cool idea. Placing the rocks to make runes was also a neat gimic, and something that I haven't seen a great deal of in roguelikes. It would have been cool if there was some way to push the infection back once you had it walled in, as I'm not sure there were enough rocks on the island to build enough guardians to completely destroy it.

I really liked this. I enjoyed trying to build walls and guardians to try and slow the spread of the infection. At some point the game started running much faster though and I wasn’t able to keep up with how fast things were progressing. I’d love to see this expanded into something bigger.