Top 3 : - FPS : Duke Nukem 3D in solo or multiplayer, unmatched fun, terrific background music on a good MPU401 midi card (Gallant SC8000 / Guillemot Maxi Sound 32 Wave FX PnP, better MIDI samples at that time than SB AWE32). And its buggy/hard to use "Build" map editor that gave nighmares to every map designer wannabe.

- Hack and Slash : Diablo II, first game I believe that introduced grinding.

- RTS : Total Annihilation with Core Contingency. What's better than stopping your foes with a swarm of Krogoths ?