The quick answer
Version 2.2 is Perilous Eminence. Use the official announcement as the reference for this version, then follow the guide for the system you want to understand.
On this page
Start with the official reference
This is a reading guide, not a complete patch-note transcription. Announcements, balance changes and fixes can be published separately. The linked official source establishes the version; check the live game for event timing and access requirements.
Choose a system
What a version label tells you
On this site, a source-checked label identifies the version covered by the cited material. It does not mean every build has been play-tested. Pages without a verified balance version should not be treated as current optimisation advice.
Sources & verification
Source research is separate from in-game testing. Recommendations are identified as editorial advice.
Something doesn’t match your game? Send a correction with the page, version and what you found.