"Gex Enter the Gecko" (3D, part 2) used the same 3D engine as Tomb Raider 1 (from CORE Design). Crystal Dynamics improved the engine with every game (like Legacy of Kain) and in the end Crystal Dynamics won over the Tomb Raider franchise with Tomb Raider Legend (2006), where as Core Design's engine fork looked old-school by then and basically killed the company. Even to this day "Rise of the Tomb Raider" is still based on that engine, obviously much improved over those many years. (source: check the Wikipedia pages)
But the article was about Gex 1995 (2D platformer): https://en.wikipedia.org/wiki/Gex_(video_game)
Trivia:
"Gex Enter the Gecko" (3D, part 2) used the same 3D engine as Tomb Raider 1 (from CORE Design). Crystal Dynamics improved the engine with every game (like Legacy of Kain) and in the end Crystal Dynamics won over the Tomb Raider franchise with Tomb Raider Legend (2006), where as Core Design's engine fork looked old-school by then and basically killed the company. Even to this day "Rise of the Tomb Raider" is still based on that engine, obviously much improved over those many years. (source: check the Wikipedia pages)