The map opens in a browser on any device, so the window mode doesn't matter. Almost every problem comes from skipped Windows prep.
Requirements
Tick what matches your PC:
- Windows 10 or 11 (x64), any version except 26H1 and 26H2
- DayZ from Steam, any window mode
- Administrator rights on the computer
- Optionally a phone, a tablet or a second monitor to keep the map apart from the game
System requirements
- Operating system Windows 10 or 11, x64 Builds up to 25H2 inclusive
- Processor Intel or AMD
- Graphics card NVIDIA or AMD
- Game mode Any
- Launchers Steam
- Built-in spoofer No
Preparation
Remove third-party antivirus and anti-cheats Kaspersky, Avast, ESET and the like, plus FaceIT and Riot Vanguard, conflict with the loader. They must be uninstalled, not just paused.
- Open Settings → Apps → Installed apps (or Control Panel → Programs and Features).
- Uninstall any third-party antivirus (Kaspersky, Avast, AVG, ESET, 360, Malwarebytes, etc.). Pausing or disabling is not enough — the antivirus driver stays resident.
- Uninstall the FaceIT AC and Riot Vanguard anti-cheats if present — they block third-party software at the kernel level.
- FaceIT is the CS2 anti-cheat, Vanguard is the Valorant one. If you don't play those games, they are safe to remove.
Fully disable Windows Defender The #1 cause of “it won't launch”. Disable it for real: manually first, then remove it from startup, reboot, and finish it off with Defender Control.
- Step 1. Turn protection off by hand. Open Windows Security → Virus & threat protection → Manage settings and switch every toggle off:
- Real-time protection — Off.
- Cloud-delivered protection — Off.
- Automatic sample submission — Off.
- Tamper Protection — Off. Turn this one off first, otherwise the others switch themselves back on.
- Step 2. Disable reputation-based protection. In Windows Security → App & browser control → Reputation-based protection → Settings, turn everything off (SmartScreen, potentially-unwanted-app blocking).
- Step 3. Remove Defender from startup. Open Task Manager (Ctrl+Shift+Esc) → Startup apps tab, find Windows Security notification icon and click Disable.
- Step 4. Restart your computer. This is mandatory — some Defender services only unload after a reboot.
- Step 5. Finish with Defender Control. Download Defender Control (archive password: r1xon), run it as administrator and click Disable Windows Defender — the tile turns red.
- If your antivirus deletes the utility itself, protection is still active — go back to step 1. The file ships zipped on purpose so Defender can't wipe it before it's disabled.
Disable Core Isolation Memory Integrity blocks the driver from loading. Takes a minute to switch off.
- Open Windows Security → Device security → Core isolation details.
- Turn off Memory Integrity and restart the PC.
- Turn Windows Defender off completely, real-time protection included. The easiest way is the DControl utility.
- Turn Core Isolation off (Memory Integrity).
- Turn Reputation-based protection off — otherwise it blocks unfamiliar programs from starting.
- Uninstall third-party antiviruses — Kaspersky, Avast, 360, ESET, McAfee and others. Uninstall, not pause: they turn back on after a reboot.
- If Windows turns real-time protection back on after a reboot, download the loader into a separate folder and add only that folder to Defender exclusions — or run DControl before every gaming session.
- Do not turn on Windows test mode (testsigning): with it the loader blocks the key. If you turned it on for other software, run
bcdedit /set testsigning offin an administrator command prompt and reboot the PC.
Launch
- Download the loader from tndr-panel.online/loader/tundra_radar.exe — only after preparing Windows, otherwise the file is deleted mid-download.
- Right-click the loader file and choose “Run as administrator”.If you use a spoofer, start it only after the radar: first the radar on your real hardware, then the spoofer. If the spoofer goes first, the key binds to the spoofed hardware.
- At the top of the loader pick the server: RU for Russia and neighbouring countries, EU for Ukraine, Europe and everywhere else. Keep any VPN off: the radar does not need one, and together with the RU server it breaks the connection.
- Enter the activation key. If typing does not work, copy the key and paste it with
Ctrl + V. - Wait for the “Connected” or “Waiting for game” status. The loader window closes by itself and the radar link opens in your browser — that is intended.
- Start DayZ through Steam and join a server. The map is picked automatically: Chernarus+, Livonia, Sakhal or Namalsk.
- As soon as your character spawns, players, zombies, vehicles and loot appear on the map. Keep the radar tab open for the whole session.
First setup
Hotkeys work while the radar tab in the browser is active, not the DayZ window.
-
F1— settings: toggling categories, marker colors and sizes, distance number size, profile export and import, RU / EN language. -
F2— player list: name search, sorting by distance, friends on top, a counter of players, zombies and cars. - F — camera follow for the chosen player.
- The 2D / 3D switch sits in the top left corner. The 3D map is still in beta.
- Filters are split into the Players, Vehicles, Loot, POI, View, Style and More tabs. On a phone keep only the loot categories you need so the map is not overloaded.
Problems & fixes
8The loader disappears right after the download
The radar map is empty
F5). If that does not help, close DayZ, run the loader as administrator again, wait for “Waiting for game” and only then start the game.The radar shows the wrong map
F5).The key cannot be typed into the loader window
Ctrl + V.The loader crashes right after loading
The radar cannot connect to the server
The key was activated while a spoofer was running
The radar page says “Key expired” although the term is not over
FAQ
8Where do I get the key after payment?
Can I use one key on two PCs?
Does the key time only run while I play?
Do I need a VPN?
How do I open the radar on a phone or a second monitor?
Does the game need a particular window mode?
Is the radar visible on a stream?
What if the product page says “On update”?
Still stuck?
Run R1XON Checker first — it pinpoints most launch problems in 30 seconds. If it still fails, attach the checker report to your support ticket and we’ll sort it out fast.