I guess if you were born in 1980, your teenage years start with Doom - which was a relief from being trapped in a world of disappointing parallax effects - and end with Silent Hill, and Alpha Centauri, which used awkward homespun voxels to make its low res 3D sprites because it still wasn't something you could just pick off the shelf and stuff into your game. In 1999 there was a mixture of games going 3D when they shouldn't (Earthworm Jim 3D, Prince of Persia 3D) and indie developers still being frustrated because they couldn't.