In order for you to play Tannenberg on Linux with minimal graphics settings, your computer must meet the following requirements
Operating System:
Ubuntu 18.04+ 64bit only. Other distros will probably work, but are not officially supported.
Processor (CPU):
Intel CPU Core i5-2500K 3.3GHz, AMD CPU Phenom II X4 940
Memory (RAM):
4 GB RAM
Graphics Card:
Geforce GTX 960M / Radeon HD 7750 or higher, 2GB video card memory
Network:
Broadband Internet connection
Storage:
8 GB available space
In order to play Tannenberg on Linux with maximum graphics settings, you need a computer with a configuration no worse than the following
Memory (RAM):
16 GB RAM
Graphics Card:
4GB video card memory
Network:
Broadband Internet connection