Temple of the Cat is the second level of Unfinished Business.
Tomb Raider: Unfinished Business (North American title: Tomb Raider Gold) is an expanded version of the original Tomb Raider which was released in 1998, shortly after the release of Tomb Raider III, on Windows and for the first time on Macintosh. This release featured the regular game as well as four new bonus levels in two extra chapters. These levels were created in the San Francisco office of Eidos by Phil Campbell, Rebecca Shearin and Gary LaRochelle.
_________________________________________________________________
You can find a guide on how to install the Unfinished Business and/or the original PS1 music on your steam version of TR1 here: https://steamcommunity.com/app/224960
Game played on PC.
Game developer: Core Design
Game recorded with Shadowplay.
Video edited with SonyVegasPro13.0