merging original repo with https://github.com/realMiksy/DeadCellsCoopPlus

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,57 @@
+---
+name: Bug report
+about: Report a bug in DeadCellsCoopPlus
+title: "[Bug] "
+labels: bug
+assignees: ""
+---
+
+## Bug description
+
+Describe the bug clearly.
+
+## Steps to reproduce
+
+1.
+2.
+3.
+
+## Expected behavior
+
+What should have happened?
+
+## Actual behavior
+
+What actually happened?
+
+## Host or client?
+
+- [ ] Host
+- [ ] Client
+- [ ] Both / not sure
+
+## Bug type
+
+- [ ] Crash
+- [ ] Desync
+- [ ] Revive/downed player
+- [ ] Enemy issue
+- [ ] Rune/progression issue
+- [ ] Invisible object
+- [ ] Networking issue
+- [ ] Other
+
+## Game/mod information
+
+- Dead Cells version:
+- DeadCellsCoopPlus version:
+- Original mod version, if known:
+- Number of players:
+
+## Logs/screenshots
+
+Paste logs or add screenshots here.
+
+## Extra information
+
+Anything else that might help.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an improvement for DeadCellsCoopPlus
+title: "[Feature] "
+labels: enhancement
+assignees: ""
+---
+
+## Feature description
+
+Describe the feature or improvement.
+
+## Why should this be added?
+
+Explain the problem this solves or why it would improve multiplayer.
+
+## Suggested behavior
+
+Describe how it should work.
+
+## Alternatives
+
+Have you tried another solution?
+
+## Extra information
+
+Add screenshots, examples, or notes if useful.

.github/pull_request_template.md

@@ -0,0 +1,44 @@
+# Pull Request
+
+## Summary
+
+Describe what this pull request changes.
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New feature
+- [ ] Documentation
+- [ ] Refactor
+- [ ] Performance improvement
+- [ ] Other
+
+## Related issue
+
+Fixes #
+
+## What was changed?
+
+-
+
+## Testing
+
+How did you test this?
+
+- [ ] Tested as host
+- [ ] Tested as client
+- [ ] Tested with 2 players
+- [ ] Tested revive/downed system
+- [ ] Tested enemy/rune progression
+- [ ] Not tested in-game yet
+
+## Known issues
+
+List any problems or unfinished parts.
+
+## Checklist
+
+- [ ] My change is focused and not mixed with unrelated edits
+- [ ] I kept credit to the original project
+- [ ] I updated documentation if needed
+- [ ] I checked that the project still builds, if possible

.gitignore

@@ -2,4 +2,9 @@ obj/
 bin/
 tools_tmp/
 __decomp_gp/
-logs/
+logs/
+.vs/
+*.user
+*.suo
+last_error.txt
+log_*.log

ADVANCED_COOP_NOTES.md

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+# Advanced Co-op Hardening Notes — v0.8.0
+
+This build goes back to the Vaiser-style base instead of the clean-room experiment, but it hardens the parts that were repeatedly causing crashes/desync.
+
+## Main changes
+
+- Disabled dangerous debug item/perk injection during `HeroInit`.
+- Disabled old debug hotkeys that spawned mobs and wrote cooldown maps during normal play.
+- Added `CoopAdvancedHardening`, a lightweight runtime layer for:
+  - automatic lobby heartbeat packets,
+  - automatic room-status refresh in the title menu,
+  - permanent rune/progression unlock sync,
+  - HUD connection status messages.
+- Added Steam invite overlay support from the host room menu.
+- Made the main co-op menu shorter and cleaner:
+  - Host room
+  - Join room
+  - Save slot
+  - Steam friends lobby
+  - IP / VPN lobby
+- Added room status lines for same-lobby visibility.
+- Added an exit teleport failsafe. If one player is at an exit/portal and another player gets stuck, the stuck player is pulled to the exit after a delay.
+- Hardened mob death handling so clients do not ignore host-authoritative death packets for mobs that already have `life == 0` but never despawned. This targets the “elite stays on client with no HP bar” bug.
+- Added broad permanent progression sync for rune-like/progression-like permanent item IDs.
+
+## Notes
+
+This is source only. Build it locally with DCCM/MDK.
+
+Recommended test order:
+
+1. Remove older broken mod copies from `coremod/mods`.
+2. Build v0.8.0.
+3. Host Steam friends lobby.
+4. Invite via the new Steam invite overlay button.
+5. Confirm the room menu says same lobby.
+6. Start run.
+7. Test elite rune rooms, Ossuary transitions, and boss doors/cinematics.
+
+Send the full console log if a crash still happens. The most important lines are `[NetMod]`, `[CoopAdvanced]`, `[MobsSync]`, `[ExitSync]`, and Hashlink exception stacks.