Here are the TRIBES 3: Rivals System Requirements (Minimum)
CPU: Intel Core i5-4690 or AMD Ryzen 5 1500X
RAM: 8 GB
VIDEO CARD: NVIDIA GeForce GTX 1060 6GB or Radeon RX 6500XT
DEDICATED VIDEO RAM: 6 GB
PIXEL SHADER: 6.0
VERTEX SHADER: 6.0
OS: Windows 10 64-bit
FREE DISK SPACE: 10 GB