TekkenRTTDisplay

Current version: 1.1.0 ( tekken8 v.3.02.01)

Shows your real pre-battle ping (RTT, in milliseconds) on the matchmaking accept dialog, instead of only the bucketed antenna-bar quality indicator. The number is read directly from the game's own RTT statistics manager, before you ever accept or decline.

Requires UE4SS (a scripting/modding framework for Unreal Engine games). If you've never installed UE4SS before, follow Part 1 below first. If you already have UE4SS working for Tekken 8, skip straight to Part 2.

Part 1: Installing UE4SS (skip if you already have it)

UE4SS is not made by this mod's author -- it's a separate, widely-used open-source modding framework that many Tekken 8 mods depend on, similar to how many Skyrim mods require SKSE.

1. Find your Tekken 8 install folder. In Steam, go to your Library, right-click TEKKEN 8 -> Manage -> Browse local files. This opens a folder that looks like: ...\steamapps\common\TEKKEN 8

   From there, open the subfolder: Polaris\Binaries\Win64

   You should see Polaris-Win64-Shipping.exe in this folder. This exact folder (Win64) is where everything in this guide gets placed -- not the top-level TEKKEN 8 folder.

2. Download UE4SS. Go to the UE4SS releases page and find the v3.0.1 release: https://github.com/UE4SS-RE/RE-UE4SS/releases/tag/v3.0.1 or https://tekkenmods.com/mod/3761/ue4ss-v3-0-1-for-tekken-8

   Under "Assets", download UE4SS_v3.0.1.zip.

   (This mod was built and tested against exactly this version. A newer UE4SS version may or may not still work -- see "Known limitations" below. If in doubt, use this exact version.)

3. Extract it into the Win64 folder. Open the zip and extract all of its contents directly into the Win64 folder from step 1 -- so that UE4SS.dll, dwmapi.dll, UE4SS-settings.ini, and a new Mods folder all end up sitting right next to Polaris-Win64-Shipping.exe, not inside a subfolder.

4. Launch the game once to confirm UE4SS is working. Start Tekken 8 normally through Steam. Then close it again, go back to the Win64 folder, and check for a new file called UE4SS.log. If it exists and has content, UE4SS is working. If you don't see it at all, see Troubleshooting below before continuing.

5. (Optional) Turn off the other mods UE4SS bundles by default. The stock UE4SS download comes with several utility/debug mods already present in Mods\ (console access, a cheat manager, etc.), some enabled out of the box. If you only want this ping display and nothing else, open Win64\Mods\mods.txt in a text editor and change every : 1 to : 0 (or just delete those mod folders from Mods\ entirely). This mod doesn't depend on any of them.

Part 2: Installing TekkenRTTDisplay

1. Download TekkenRTTDisplay-release.zip from this repo and extract it somewhere on your PC.
2. In the Win64 folder from Part 1, open the Mods folder (UE4SS created this for you).

3. Copy the entire TekkenRTTDisplay folder (from the zip you just extracted) into Mods, so you end up with: Win64\Mods\TekkenRTTDisplay\enabled.txt Win64\Mods\TekkenRTTDisplay\Scripts\main.lua Win64\Mods\TekkenRTTDisplay\dlls\main.dll

   (A common mistake: some zip tools create an extra nested folder. Make sure enabled.txt is directly inside TekkenRTTDisplay, not inside TekkenRTTDisplay\TekkenRTTDisplay.)

4. Launch the game. No further setup, no editing any config files.
5. To verify it loaded: check UE4SS.log for a line like Mod 'TekkenRTTDisplay' has enabled.txt, starting mod.
6. Go into matchmaking (Ranked or Quick Match). Once an opponent is found and the accept dialog appears, the connection-rate label should now read something like Ping: 67 ms | Disconnection Rate: 0%.

Uninstalling

Delete the Mods\TekkenRTTDisplay folder. That's it -- nothing else on your system is touched. (To also remove UE4SS entirely, delete UE4SS.dll, dwmapi.dll, UE4SS-settings.ini, UE4SS.log, and the Mods folder from Win64.)

Troubleshooting

• No UE4SS.log ever appears. UE4SS isn't loading. Double check the files from Part 1 were extracted into Win64 (the folder containing Polaris-Win64-Shipping.exe), not the top-level TEKKEN 8 folder.
• Antivirus deleted or quarantined dwmapi.dll. This is a known false positive -- the technique UE4SS uses to load itself (replacing a system DLL with a proxy that forwards to the real one) resembles something malware also does, even though this is legitimate open-source software. Restore it from quarantine, or add an exclusion for the Win64 folder in your antivirus settings.
• UE4SS.log looks fine but there's no TekkenRTTDisplay line in it. Re-check the folder structure from Part 2, step 2.
• Mod loads (per the log) but no ping ever shows. The memory offsets this mod uses are specific to the exact game build they were found on -- see "Known limitations" below. This has already happened once (see Changelog 1.1.0) and may happen again after future game patches.

Known limitations

• The memory offsets this mod uses are specific to the exact game build they were found on. If Bandai Namco patches the game, these offsets can shift. The read is wrapped in exception handling, so a broken offset should just mean the ping display falls back to the game's own text rather than crashing -- but a value that's wrong-but-plausible after a patch is a theoretical risk until offsets are re-verified.
• This is unaffiliated fan-made software, not endorsed by Bandai Namco or the UE4SS project.

Changelog

• 1.1.0
  • Fixed the mod going silent (falling back to vanilla text, no ping shown) after a game patch changed the executable enough to move the RTT stats manager's address. Re-located the new address via a runtime memory scan rather than static analysis, and updated the offset.
• 1.0.1
  • Fixed occasional garbage/negative ping values (e.g. displaying something like 111182458.8 ms), caused by reading the game's RTT sample list without synchronization -- an unlucky read could land mid-write and return corrupted data. Now filtered out before display (any value outside a plausible 0-2000ms range is discarded rather than ever shown).
  • Reduced how often the mod scans for the matchmaking dialog as a fallback (from every 2s to every 30s), based on evidence from a crash report that this scan could occasionally trigger a crash if it ran during the heavy object cleanup that happens right when a match ends.
• 1.0.0 - Initial release.

Source / how it works

Full source (including the native component) is available for anyone who wants to verify what this does or rebuild it themselves -- see TekkenRTTDisplay-source.zip in this repo.