"Warcraft 3" is a real-time strategy game owned by Blizzard. This game has very low configuration requirements. Basically, anyone with a moderately bad computer can play it. The minimum requirement for CPU is only i3-530, and the minimum requirement for graphics card is: GTS 450.
Introduction to game configuration requirements
Minimum Requirements
Operating system
Windows® 7 / Windows® 8 / Windows® 10 64-bit (latest version)
Processor
Intel® Core® i3-530 or AMD™ Athlon™ Phenom™ II X4 910 or higher
Graphics card
NVIDIA® GeForce® GTS 450 or AMD Radeon™ HD 5750 or higher
Memory
4GB RAM
Hard disk space
30 GB available space
Internet
Broadband Internet connection
Input
Keyboard and mouse
Resolution
800 x 600 minimum resolution
Recommended specifications
Operating system
Windows® 10 64-bit (latest version)
Processor
Intel® Core™ i5-6400 or AMD Ryzen™ 7 1700X or higher
Graphics card
NVIDIA® GeForce® GTX 960 or AMD Radeon™ R9 280X or better
Memory
8 GB RAM