"Lex Imperialis" is the second story expansion for Warhammer 40,000: Rogue Trader, providing an additional 15 hours of thrilling narrative-driven gameplay that explores the iron-clad rule of Imperial Law and introduces an entirely new faction - the Adeptus Arbites.
Unravel the dark secrets of House von Valancius as you navigate a perilous web of justice, duty, and betrayal, on a quest that will alter the destiny of the entire Koronus Expanse.
| Release date: | 24 Jun 2025 |
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| Last update: | 20 Jul 2026 (on Steam, public branch) |
| Developers: | Owlcat Games |
| Publishers: | Owlcat Games, Postmeta Games Ltd., META Publishing |