In order for you to play Colossal Cave on Windows with minimal graphics settings, your computer must meet the following requirements
Requires a 64-bit processor and operating system
Operating System:
Windows 10
Processor (CPU):
Intel Core i5-4590/AMD FX 8350 equivalent or better
Memory (RAM):
4 GB RAM
Graphics Card:
NVIDIA GeForce GTX 970, AMD Radeon R9 290 equivalent or better
DirectX:
Version 11
Storage:
12 GB available space
VR Support:
SteamVR, OpenXR
In order to play Colossal Cave on Windows with maximum graphics settings, you need a computer with a configuration no worse than the following
Requires a 64-bit processor and operating system
Processor (CPU):
Intel Core i5-9600/AMD RYZEN 5 3600X equivalent or better
Memory (RAM):
16 GB RAM
Graphics Card:
NVIDIA GeForce GTX 1070