I've installed:
The Elder Scrolls Adventures: Redguard - During setup, you can choose Software (no acceleration) or 3dfx (Glide). There are two executables: Rg.exe and Rgfx.exe - No DirectX options.
Sentinel Returns - There are 2 DLL option calls when the game executes - one is H3DeviceSoftware8Bit.dll and the other is H3Device3Dfx.dll. When DirectX is completely disabled, the game goes haywire (I'm guessing CPU is too fast), but it works. With DirectDraw enabled and Direct3D disabled, the game runs fine as does Glide - No Direct3D.
Asghan: The Dragon Slayer - Supports Glide, Software, and Direct3D in three separate EXE's. If Direct3D is disabled and the D3D executable is run, the game complains of no hardware acceleration - This game can be removed from the list.