[FrozenVoid]

Thats C++ source from v1.00 pre-expansion, an early version that is quite not the polished game that v1.07/v1.08 was, written on pre-c++98 MSVC code by inexpirienced and overworked programmers, when win95 was the mainstream OS and 128mB of ram was plenty and 3D cards were luxury products(most used motherboard graphics).

https://www.codeofhonor.com/blog/tough-times-on-the-road-to-...

[blkhawk]

When Windows 95 was the Mainstream OS 32 MB was what most people had and 64mb was plenty. Most people used PCI or VLB 2D graphics cards. There was simply not enough memory on the board for IGU. Most PCs had not even got USB by that point.

[FrozenVoid]

People who couldn't afford video cards would use motherboard graphics. They were usually not fit for gaming, except for low-resource games, and 3D/2D accelerator cards were sought after. http://www.eetimes.com/document.asp?doc_id=1209125 https://en.wikipedia.org/wiki/Silicon_Integrated_Systems https://en.wikipedia.org/wiki/Intel_810 https://en.wikipedia.org/wiki/Intel740