The Sierra Adventure classics are just that: Classics!
Betrayed Alliance is a fan-made Adventure game in the same dos engine that ran the older games. Retro EGA graphics and sound, parser-interface, and good ‘ol puzzles! And best of all, it’s FREE!
Betrayed Alliance Book 1




Betrayed Alliance Book 2 has a free demo:




Betrayed Alliance is set to be a trilogy of games. Book 1 is now complete! While the games are always free to download and play, you can support the project and get some really cool stuff!
The Manual features colored pages, complete with a hint guide for those who want a gentle push in the right direction, but also a walkthrough if you happen to get stuck.

Betrayed Alliance Book 2 is deep into development with a playable demo, but a release date for the completed game is still hazy – Hoping 2026 is the year!
Updates for Betrayed Alliance can be found here and on my “X” account, @slattstudio.
If you enjoyed the games and wanted to come chat about them (or other games), you can join our discord server.
Development updates for BETRAYED ALLIANCE:
- December 2025 Update and Year Recap
- October 2025 Update
- June 2025 Update
- March 2025 Update
- January 2025 Update
- December 2024 Update
- September 2024 Update
- May 2nd Release of Book 1
- March 2024 Update Trailer for Book 1
- December 2023 Update
- October 2023 Update
- July 2023 Update
- April 2023 Update
- February 2023 Update
- April 2023 Update
- November 2022 Update
- August 2022 Update
- May 2022 Update
- Feb 2022 Update
- Kickstarter Funded Update
- November 2021 Update
- August 2021 Update
- June 2021 Update
- April 2021 Update
- January 2021 Update
- One-year Update
Betrayed Alliance is set to be a Trilogy, the first book already available for free. This is a passion project and I will not be charging for any of the games at any point. However, if you wish to patronize this project, I’d love your help:
Check out my Fourth Wall page for awesome shirts, hoodies, hats, and stickers:




