Ironhide's News/Details/527 lists 5 Steam bugs (0kb CD Key reset, 30Hz / VSYNC stutter, screen-resolution detection, custom keybinding limited to in-stage, hero drag-line freezing at path corners) and 2 mobile bugs (tutorial-bypass purchase bug, blue-screen save-file crash awaiting hotfix). Each Ironhide-confirmed bug has a step-by-step workaround below. Player-reported Steam Community issues (ultra-wide 21:9 unsupported, first-level crashes) are tracked in a separate section until Ironhide acknowledges them.
Steam bugs (Ironhide-confirmed)
Ironhide has published step-by-step workarounds for the 5 launch-window Steam bugs below. The 0kb CD Key issue is already patched in the launch build; the others require a player-side action until a hotfix ships.
0kb missing executable / CD Key
Some Steam installs report a 0kb executable or an empty CD Key field at launch. Ironhide has patched this in the launch build; if you still see the issue, restart Steam (right-click the Steam tray icon → Exit, then relaunch) so the client re-validates the build, then verify the game files via Steam → Properties → Installed Files → Verify. This was the highest-visibility launch bug and is fixed for the majority of installs.
30Hz display stutter / VSYNC fix
Players on 30Hz displays (or laptops running at a capped refresh rate) report input lag and frame stutter. Close any active frame cap or VSYNC override in your GPU control panel (NVIDIA Control Panel, AMD Software, Intel Arc Control) and set the in-game display to the native panel rate. The launch build defaults VSYNC to ON; if your panel is 30Hz, leave VSYNC on. If stutter persists, edit the in-game settings file to force a fixed 30 FPS cap until the next hotfix.
Wrong screen-resolution detection
On some multi-monitor setups the launch build picks the wrong primary display and renders the window at an off-screen resolution. Quit the game, delete the `settings.lua` and `global.lua` files from `%USERPROFILE%\AppData\LocalLow\Ironhide\Kingdom Rush 6 Genesis TD\` (Windows) or `~/Library/Application Support/Ironhide/Kingdom Rush 6 Genesis TD/` (macOS), and relaunch. The game rebuilds fresh config files and re-detects your primary display.
Custom keybinding limited to in-stage
Custom keybindings currently persist only for the active stage and reset on return to the world map. Ironhide has confirmed the limitation; a hotfix is expected to make bindings persistent across stages. As a workaround, rebind keys at the start of each stage until the hotfix lands, and track your preferred layout in a note app.
Hero drag-line freeze at path corners
If a hero's drag-line (the live movement indicator) freezes at a lane corner, click anywhere on the lane to clear the path indicator, then reissue the move order. Ironhide has flagged this as a known UI rendering issue; the underlying hero pathing still works, only the visual indicator gets stuck.
Mobile bugs (Ironhide-confirmed)
Two mobile bugs are confirmed in the News/Details/527 post. The tutorial-bypass purchase bug is fixable in-app; the blue-screen save-file crash is awaiting a hotfix.
Mobile tutorial-bypass purchase bug
Some iOS and Android users report being able to skip the in-game tutorial while the store prompts for a starter pack purchase. Ironhide has confirmed the bug and reverted the bypass in the current mobile build — the tutorial is mandatory again until the next mobile hotfix. If you already skipped the tutorial, the regular campaign walkthrough remains available from the world map.
Mobile blue-screen save-file crash (awaiting hotfix)
Some iOS and Android users report a blue-screen crash on launch that wipes the local save file. Ironhide has acknowledged the bug in News/Details/527 but a fix is not yet in the current mobile build. Do not delete and reinstall the app on a hunch — that compounds the save-loss. Wait for the next mobile hotfix and back up your campaign progress via the in-game cloud-sync option if it is available.
Steam Community player-reported issues
Two Steam Community threads have surfaced repeatedly in launch-day discussions. Ironhide has not formally acknowledged either one yet; they are tracked here so players can find the active threads and add corroborating reports.
Ultra-wide 21:9 unsupported
Players on 21:9 ultra-wide monitors report letterboxed rendering or stretched HUD. The launch build targets 16:9 and 16:10; 21:9 is not in the verified list. Try a 16:9 virtual resolution via your GPU control panel or wait for a HUD-scaling patch. Track the active Steam Community thread under AppID 4259190 for the latest player workaround notes.
First-level crashes on Steam
Some Steam players report hard crashes on the first campaign stage. The launch build's 0kb CD Key fix has reduced but not eliminated these reports; remaining instances tend to coincide with overlay software (Discord, MSI Afterburner, RTSS) injecting into the launch process. Disable overlay software and any frame-capture overlays, relaunch Steam, and retry the first stage. Report reproducible crashes on the Steam Community Hub so Ironhide can capture logs.
How to track the next patch
The authoritative upstream for every bug and workaround on this page is Ironhide's News/Details/527 post. Re-stamp this page from that post when Ironhide publishes updates; the Steam Community Hub for AppID 4259190 carries the day-of patch announcements and the official Steam patch notes. We do not invent bugs the research did not enumerate; only entries with concrete public evidence appear above.
FAQ
Does Kingdom Rush 6: Genesis TD have post-launch bugs?
Yes. Ironhide's News/Details/527 known-issues post lists 5 Steam bugs and 2 mobile bugs with step-by-step workarounds. See our /known-issues page for the full list and the official workaround for each. The authoritative upstream is ironhidegames.com News/Details/527; this page re-stamps from that post on every update.
What Steam bugs does Kingdom Rush 6: Genesis TD have?
Ironhide confirms 5 Steam launch bugs: 0kb missing executable / CD Key (already patched), 30Hz / VSYNC stutter, wrong screen-resolution detection, custom keybinding limited to in-stage, and hero drag-line freezing at path corners. Each has a workaround on the /known-issues page.
What mobile bugs does Kingdom Rush 6: Genesis TD have?
Ironhide confirms 2 mobile launch bugs: a tutorial-bypass purchase bug (fixed in the current mobile build by reverting the bypass) and a blue-screen save-file crash that is awaiting a hotfix — do not delete and reinstall the app on a hunch. See the /known-issues page for the full workaround and the Ironhide News/Details/527 source.