Removed the "Exclusive Fullscreen" display option.
Added proportional window resizing for windowed mode.
Added support for adjusting the game language via the Steam client.
Fixed the issue where the AI preset for enemy units "reaching the target location" was unavailable.
Fixed the problem where enemy attack intentions were not displayed in the first turn.
Add a new achievement system.
Add new playable units.
Add new main quest levels.
Add new difficulty options.
Optimize UI interactions and quality-of-life features.