Bring a friend
No matchmaking queue or strangers. Open a match, share a code and defend together. Only the people you invite can join.
In development · Android closed beta open
The tower defense we played all night with friends. Online, each from home.
Learn alone or hold the line together: one castle, growing waves, and your friend's escaped enemies becoming your problem. The Android closed beta is open. A Google account and three minutes will get you into the garrison.

Enter the world
A castle. Centuries of battles. A friend to stand beside you.
The idea
This did not begin with market research. It began with Warcraft III tower-defense maps: whole days spent defending a road together, each with a section to hold and every breach to close as a team.
That feeling never really made it to phones. Mobile tower defense often makes you wait for strangers, blocks progress unless they join, or sells you a way out of a losing match. RemparZ takes another route: bring your own friend and let the game handle the rest.
No matchmaking queue or strangers. Open a match, share a code and defend together. Only the people you invite can join.
Solo and duo have separate progression; neither is a lesser mode. The ability to start at a later stage benefits both.
A tunnel, a lift, a router restarting: your place is held for two waves. This common frustration is a design starting point, not an extra.
Install and play solo for free. A single purchase will unlock duo permanently: no subscription, ads or paid rescue from a losing match.
Instead of open text chat, use map pings and translated game phrases. Players can coordinate without exposing anyone, especially children, to abuse.
Matches run on self-hosted infrastructure in France, managed by the person making the game. No data resale and no advertising tracker.
Preview
The game changes every week, so these images may change too. Weather is randomized each match: sunshine, rain, snow and wind give the battlefield a different look.




Development
The game engine, duo matches and progression run daily; this is not a mock-up. The Android build is playable in closed beta. Mobile-network recovery, translations and tester feedback still need work.
No public release date will be announced until it is realistic. The game will go public when the beta has done its job. Testers receive each new build through the Play Store automatically.
The beta
With a Google account, installation takes about three minutes through the Play Store. Google's current closed-testing requirement is twelve testers over fourteen days; each sustained installation matters.
Use the Google account on your phone, the one connected to its Play Store. The group grants access and has no other purpose.
Join the groupOn the Play Store test page, choose to become a tester, then install as usual. Access may take a few minutes after step one.
Open the test pageIt takes about a minute with your phone's passkey; no password. Keep the game installed for at least fourteen days, and tell us what works or gets in the way.
No Android phone? You can also play in a browser, on a computer or phone: remparz.ifredz.ovh.
Google sees your group membership and installation, as it does for other Play Store apps. iFredZ only reads the group's member list.
The game sends your chosen nickname, completed-match data and device information (model, display, frame rate) to improve balance and fix problems. No data resale, third-party transfer or advertising tracker. Details: privacy policy.
You can leave the group and uninstall at any time. Ask us to delete your game account at support@ifredz.ovh. Data deletion information (legal pages currently in French and English).
Frequently asked questions
Join the Google testers' group using the account on your phone, accept the test on the Play Store test page, then install. Create your in-game account with your phone's passkey.
The Android closed beta is distributed through the Google Play Store, which grants access to members of a Google group. Use the account linked to your phone.
Android 13 or newer on a 64-bit processor; 6 GB of memory is recommended. The Play Store only offers the game to compatible phones.
There is no announced release date. Public release will follow the beta when the game is ready. Testers receive updates through the Play Store.
Solo is free to install and play. Duo will require a single purchase, with no subscription, ads or extra in-match purchases. The price has not been set.
The closed beta is Android only. An iPhone version is neither promised nor scheduled. For now, you can play in a browser on a phone or computer.
Check that you joined the group with the Google account on your phone, then reopen the test page. Access can take a few minutes. If it still fails, email support@ifredz.ovh.
Yes, at any time: uninstall and leave the group. Ask support@ifredz.ovh to delete your game account; the data deletion page explains the process.
A Google account, three minutes, and you can join the first defenders.