Downloads
Client
The client is fully compatible with Windows XP or later.
Server
The Windows server requires Windows 7 or later and will not run on Windows XP or Vista.
Tomb Raider Level Editor
Tomb Raider Level Editor is the most recommended download.
Tomb Raider Level Editor (Smaller) doesn't include the map files and automatically builds them which will take longer.
Developer Symbols
You can add
https://symbols.tombraidermodlauncher.co.uk/to Visual Studio to grab debug symbols in order to investigate a crash.