There is no in-game menu: the map and all settings live in the browser. Most of the work is system prep.
Requirements
Tick what matches your PC:
- Windows 10 or 11 (x64) — builds up to 25H2 inclusive. 26H1 and 26H2 are not supported
- An Intel or AMD processor
- The game from the Arena Breakout launcher or from Steam
- Administrator rights: the loader only starts as administrator
- A second screen, phone or tablet to keep the map open
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 Arena Breakout Launcher or 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.
- Turn off Windows Defender — by hand first. Under “Manage settings” switch off all four toggles: real-time protection, cloud-delivered protection, automatic sample submission and tamper protection. The order is not accidental: while Tamper Protection is on, Defender Control cannot apply its change.
- Uninstall third-party antivirus with the vendor's own removal tool, not through “Add or remove programs”: a regular uninstall leaves drivers in the kernel that keep blocking the loader. For Kaspersky that is kavremover; for the rest, search “antivirus name + removal tool” on the vendor's site.
- Uninstall other games' anti-cheats — Riot Vanguard (Valorant) and FACEIT AC if they are installed. For these the regular “Add or remove programs” is enough.
- Turn Windows test mode off if you ever turned it on. With test mode (testsigning) on, the loader blocks the key, so do not enable it for other software either. It is turned off with
bcdedit /set testsigning offin an administrator command prompt — the reboot comes in the next step. - Reboot the PC. This step is mandatory: without it the antivirus and anti-cheat drivers stay loaded in the kernel, and Defender comes back on the next boot.
- Download the loader — download Tundra Radar — put it in its own folder, run it as administrator and press 🔧 Prepare system. The button turns off HVCI, VBS and Hypervisor Launch by itself — no manual registry editing is needed.
- Reboot the PC once more. Those fixes only apply on the next kernel boot. After the second reboot the system is ready.
Launch
- Put tundra_radar.exe in a convenient folder and do not run it straight from an archive.
- Right-click the file → 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 license key in the
TUNDRA-XXXXX-XXXXX-XXXXXform — it arrives right after payment. - Wait for the “Ready” status. Do not close the loader window — it closes on its own and opens the radar tab.
- Start the game and enter a raid as usual: pick the map and mode, wait for the location to load.
- The map fills up while you are in the raid: in the main menu and on the loading screen it is empty, and that is normal.
- Keep the map tab open for the whole raid. Nothing has to be restarted for the next raid — the map refreshes on its own.
- Tip: open the radar on your phone or a second monitor. The map then stays out of stream capture and is always within reach.
Map legend
The same legend is built into the radar, in the map legend block.
- Circles are players. Green is you and your teammates. Enemies are coloured by team: every squad gets its own colour, so you can tell at a glance who moves together.
- Diamonds are AI. The colour depends on the type: light blue is an AI PMC, white a bot, red a boss, pink a guard, green a scav, orange an actor, purple elite, lime a zombie. The colours can be changed in the radar settings.
- A triangle instead of a circle is a player on another floor: ▲ above you, ▼ below.
- A yellow X with a red pulse is a knocked-down player (DBNO).
- Next to a player you see a health bar (green → yellow → red) and the value of their gear, for example $15k. Hover over the player to get a breakdown of their gear.
- TH and T7 are thermals. TH means the player has a thermal scope on their weapon, T7 means their helmet thermal is on.
- A backpack icon is a backpack a player dropped. A green square is a safe, and the marker colour shows its state: green is closed, orange is open, red means someone is looting it right now.
- The Trader window shows the trader's stock right in the radar, with boxes outlined in their rarity colour. Hover over a box to get the list of items it can contain, with rarity and price. These are variants, not a guaranteed item. The ↻ button in the window header refreshes the list.
Problems & fixes
15The map is empty, no players and no loot
The antivirus deleted the loader right after the download
The loader window closed by itself — is that an error?
The key is rejected
0 and O, 1 and I are easy to confuse. Then check the system time — activation fails when it drifts from real time: Win + R → timedate.cpl → Internet Time → Change settings → Update now, or w32tm /resync in an administrator command prompt.The loader closes itself in one or two seconds
Del, F2 or F12 at boot) and set Secure Boot to Disabled.Positions on the map do not update or lag behind
The wrong map was detected
F5) while already in the raid. On TV Station also check the selected floor — that map is split into levels.Too much loot on the map, nothing is readable
The “Memory Integrity” toggle is greyed out
Hyper-V, WSL2, Docker Desktop or “Sandbox” are installed
It stopped working after a Windows update
The map does not load or 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
The loader crashes right after loading
Nothing matches. Run R1XON Checker or write to support — we will sort it out.
FAQ
13Where do I get the key after payment?
Which key opens the menu in game?
What do the map markers mean?
How do I see the trader's stock?
The trader shows several items in one box — which one will I get?
Can I open the map on a phone?
Do I need to restart the loader between raids?
Are settings kept between launches?
Can I use one key on two PCs?
Does the key time only run while I play?
Does it work on a laptop?
Do I need to turn off virtualization in BIOS?
Do I need a VPN?
Nothing matches. Run R1XON Checker or write to support — we will sort it out.
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.