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Steam News27 July 202615d ago

Workshop Creator Notice: Engine Update and Mod Compatibility

We've recently updated the main Steam branch of Rivals II to the latest version of Unreal Engine (5.8).

Full notes

Full Rivals of Aether II update

Read the full published notes in a cleaner layout. The original post stays linked below.

What changed

0 fixes2 additions1 change0 removals
  • Compatibility
  • Workshop
changedWe've recently updated the main Steam branch of Rivals II to the latest version of Unreal Engine (5.8). Unfortunately, mods created in previous versions of Unreal are incompatible with this version and will need to be updated to work. As we plan to move Workshop out of beta and into the main game soon, this means ALL mods created with our previous modkits must be updated. Luckily, the process is simple.
addedTo get your mod up to date, download the latest 5.8 modkit and simply recompile your mod. Please make sure you test your 5.8 workshop items on the new public 5.8 workshop branch available on Steam.
addedIn one week, we'll be making the new 5.8 version of the Workshop Beta the default Workshop branch for Rivals 2. At this time we'll also private all mods older than 5.8 so that we only have functional mods visible on the workshop. Make sure to update your item on Steam Workshop to a 5.8 compatible version if you'd like it to still be listed and playable.

Rivals of Aether II changes

changedWe've recently updated the main Steam branch of Rivals II to the latest version of Unreal Engine (5.8). Unfortunately, mods created in previous versions of Unreal are incompatible with this version and will need to be updated to work. As we plan to move Workshop out of beta and into the main game soon, this means ALL mods created with our previous modkits must be updated. Luckily, the process is simple.
addedTo get your mod up to date, download the latest 5.8 modkit and simply recompile your mod. Please make sure you test your 5.8 workshop items on the new public 5.8 workshop branch available on Steam.
addedIn one week, we'll be making the new 5.8 version of the Workshop Beta the default Workshop branch for Rivals 2. At this time we'll also private all mods older than 5.8 so that we only have functional mods visible on the workshop. Make sure to update your item on Steam Workshop to a 5.8 compatible version if you'd like it to still be listed and playable.

We've recently updated the main Steam branch of Rivals II to the latest version of Unreal Engine (5.8). Unfortunately, mods created in previous versions of Unreal are incompatible with this version and will need to be updated to work. As we plan to move Workshop out of beta and into the main game soon, this means ALL mods created with our previous modkits must be updated. Luckily, the process is simple.

To get your mod up to date, download the latest 5.8 modkit and simply recompile your mod. Please make sure you test your 5.8 workshop items on the new public 5.8 workshop branch available on Steam.

In one week, we'll be making the new 5.8 version of the Workshop Beta the default Workshop branch for Rivals 2. At this time we'll also private all mods older than 5.8 so that we only have functional mods visible on the workshop. Make sure to update your item on Steam Workshop to a 5.8 compatible version if you'd like it to still be listed and playable.

Source

Steam News / 27 July 2026

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