The Alpha was the first playable build released to early backers (Founders) before the game's official launch on December 7, 2023. Because modern games are large—the full Steam version is approximately 36.5 GB—they are often split into smaller .rar or .zip parts (Part 1, Part 2, etc.) for easier sharing or downloading.

: Since the full game and its Void Shadows DLC are now released, Alpha builds are considered obsolete and may contain significant bugs or missing assets compared to the final retail version. News - Warhammer 40,000 - Rogue Trader - Owlcat Games

: The core tactical combat mechanics that define the Warhammer 40,000 experience. Instructions for Preparation If you are attempting to extract this file: