A verification-first r2modman workflow for PEAK, from the correct Thunderstore community to a repeatable modded launch.
Start from the game’s own Thunderstore community, not a package with a similar name from another game. Read the loader requirement, target game version, dependencies, and recent package activity. r2modman support is a distribution and profile workflow; it does not guarantee that every package remains compatible after a PEAK update.
Make a clean profile and verify Settings → Locations against Steam’s Browse local files result. Install only the community-required loader or core pack, then use Start modded. A loader-only success proves more than importing a large pack and hoping the final screen identifies the problem.
PEAK sessions are sensitive to mismatched gameplay changes. Separate client-only convenience mods from mods that alter movement, items, physics, or lobby behavior. Share the profile export plus a short note naming the intended PEAK build, and have every player launch the profile once before the session.
First prove vanilla multiplayer still works. Then test the loader-only profile, one visible mod, and finally the shared pack. When a lobby fails, compare Installed lists and versions between players instead of assuming the host is the only relevant machine.
Clone the working profile before updating the loader or several mods. Test the clone, preserve the old versions, and move changes into the stable profile only after the same launch and gameplay checks pass. Record manual files that a profile export cannot reproduce.
A mod can be technically loadable and still be disallowed by a server, anti-cheat system, tournament, or game policy. For multiplayer, align required client and server packages and exact versions. Treat mod README files and server rules as primary operational documentation.
It depends on the package. Gameplay, lobby, and network-affecting mods often require coordination; check each README and keep versions aligned.
Compare required packages, versions, configs, and game builds on every client, then reproduce with a smaller shared profile.
Yes. Keep a separate profile and use the normal launch path when you want an unmodded comparison.
Research note: September 13, 2026 snapshot. Game support and compatibility remain community-specific.
Recommended path: read this guide → download or create a minimal profile → record the result → expand to the full modpack.