Casual Game Engine is a free game engine to let users create their own 2D top-down singleplayer shooter games.
SYSTEM REQUIREMENTS
MINIMUM:
Requires a 64-bit processor and operating system
OS: Windows 7 or above
Processor: 1.5 GHz or more
Memory: 1024 MB RAM
Graphics: Intel HD chipcard or better
DirectX: Version 9.0
Storage: 23 MB available space
Additional Notes: Requires a 64-bit processor and operating system