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725 Sep 2026
| Published | Title | Build |
|---|---|---|
| Minor update 1.2.1 A very small update to improve the Daily Challenge and fix a couple of bugs. Daily Challenge changes · Session time now displays seconds in the leaderboard · If you give up, your time will not be registered · Bonus country trait is now assigned to the first agent like in Classic mode · Finishing a Daily Challenge after the time limit will not be registered Various · UI improvements · Mission re… | — | |
| Sigma Theory 1.0 now availablemajor Sigma Theory is finally out of Early Access! The 1.0 update is available to download from Steam now! The current game has nothing in common with the one we've released 7 months ago. We've worked hard fixing bugs, improving feedbacks, adding content, fine-tuning mechanics and balancing gameplay with your feedback and support to come up with the best version of the game you get today! Making a ga… | — | |
| Story Mode and more now available!major Save the President... Or not? The long-awaited Early Access update 0.20 for Sigma Theory is now available on Steam. The first Story Mode campaign is now playable and adds a whole new storyline to the base game with interactive dialogues involving new characters. Depending on your decisions, you will discover different endings, each unlocking a new recruitable agent. In this campaign, several so… | — | |
| Early Access Update 0.19 Dear agents, please welcome update 0.19 ! This is a minor update meant to fix remnant bugs and prepare the field for the next ones. The infamous ‘drug’ event has been fixed and we’ve added a neat ‘Team Snapshot’ when the game ends. What’s up next In parallel to this update, we’ve made tremendous progress on the bigger things. In September, we’ll deploy the biggest update ever including the firs… | — |
| Date | Day | Time | Patch title | Build ID | Branch | Depots | Download Δ |
|---|---|---|---|---|---|---|---|
| 28 Oct 2020 | Wed | 12:42 | No patch notes · unannounced build | 5748425 | beta | 4 | — |
| 28 Oct 2020 | Wed | 12:42 | No patch notes · unannounced build | 5748425 | public | 4 | — |
| 24 May 2019 | Fri | 12:53 | No patch notes · unannounced build | 3854860 | test-achievements | 4 | — |