Changes
We've added new cards (13 types of units).
The "Grassland 3" stage has been added.
We've added "AI Thief Book Lv. 2" to the training (this AI uses skills and map skills).
The version of our internal game engine (Unity) has been updated.
Fixed the following issues
The game would become unplayable if a unit was destroyed by a "Mine Trap"
Although it was only available for a short time from 0.8.14 to 0.8.19, minor bug fixes related to the changes in version 0.8.20 continued.