You control a girl. She fights ghostly, rabbit-like creatures. They keep coming until you win the level somehow. When you kill enemies, they drop power-ups or stuff to craft new spells. Battles are turn-based.
The spells, systems, and enemy behaviour, lend themselves to a lot of interesting choices, but it isn't really a strategy game. Maybe on par with a JRPG, but there is no leveling or character outfitting. Nor is there really a plot. There's a setting, and a bunch of levels.
It runs on Windows, MacOS, and Debian. Write me if you wanna try it.
I maintain a sporadic development log on TIGSource (here)