Bug fix
1. Fixed a bug where opening the pause interface caused the volume to be set to 0
2. Fixed a bug where some sound effects were not affected by volume settings
3. Added a simple flag for language selection on the title page
4. The announcement on the title interface supports multilingual versions
Adjustment
1. Flies can now experience falling
2. Balanced the zombie generation rate of the forest cemetery level
We have reopened the demo entry on the Steam store page. The demo is a simplified version that only supports a few upgrade options, characters, and weapons, with slightly different clearance conditions.