Here's a Beta 1.1 version with 11 bug fixes and improvements.

Fixed bugs

• Fixed the bug where the player can't create buildings during the tutorial
• Fixed the bug where AI characters navigate through walls.
• Fixed the bug where pause menu interface is below other user interfaces
• Fixed the bug where the game doesn't save player's money, bullets, weapon data, and upgrades.
• Fixed the bug where pressing 'I' doesn't close Building Manager Window.
• Fixed the bug where sometimes, the player can't change weapon by using the mouse scroll.

Fixed bugs that need verification

• Fixed the bug where sometimes, new game and restart function is not working properly. 
• Fixed the bug where 2 characters sometimes, get sorted in front of the obstacles (sprite sorting problem)

UX Improvements

• Closed sign of closed buildings is now visible without Eagle Eye mode.
• Lower the number of enemies in the tutorial. 
• Edited tutorial sequence: player need to defeat all the enemies first before they can proceed to the skill tutorial.

Known issues that we're fixing.

• Moving mouse rapidly sometimes, let the player place buildings in overlapped obstacles.
• Sometimes, the character's lamp and torch animation don't get played.
• Hitbox of all the miscellaneous buildings needs to be adjusted.
• Players don't realize that holding down E will cancel Teleportation.