Aremon Backup is a small puzzle game about working with your own past. A door only opens while someone stands on its plate, and you are alone, so you record yourself, rewind time, and let that recording (an Echo) hold the plate while you go through. It plays in the browser and on Google Play; the Play box at the end of this article links the stores where it is live.
We played the web version on 21 October 2026 in a 1280×800 window with the keyboard and cleared the first mission. Here is how the idea works and what we learned the slow way.
The Living Vault
There are no ordinary menus. The home screen is a night-sky vault with glowing orbs: Mission Gate (play), Archive Map, Chronicle Obelisk, Aremon Habitat, Memory Lantern and How to play, plus a Signal Bird in the corner. Under the title it shows your Best seals, which start at 0.

How Backup works
The How to play orb explains the whole game in three lines, and it is worth reading once:
- The door only stays powered while a body stands on the plate.
- Press Backup: time rewinds and an Echo replays everything you just did.
- The Echo holds the plate for you, so you can run through, take the key and put it in the lock.

A line at the bottom adds the scoring: three Echoes per run, and fewer Echoes, no alarm and a fast escape earn all three Seals.
Mission 1, First Echo
The first level is the tutorial in real form: a plate on the left, the door in the middle wall, the key and lock on the right, and a 45 second clock. The two buttons at the bottom right are Backup (with a counter that started at 3) and Hold.
We walked to the plate. The door's stripes turned green and the hint changed to The way is open, grab the key. But the moment you step off, it closes again.

So we pressed Backup. A banner read Echo saved, time rewinds, the clock went back to 0 and our keeper was at the start again. The Echo counter at the top left now read 1/1.
The part we did not expect: the Echo replays exactly what you did, mistakes included. We had overshot the plate and walked back to it, and the blue Echo did the same thing, so the door only opened once it had settled on the plate again. Walk straight onto the plate on your recording run and your Echo will be faster too.
While the Echo held the door, we went through and reached the key. A Hold bubble appeared over our keeper: that is the button that picks the key up.

Then down to the padlock, and the level was clear.
Our result: two Seals out of three

We earned Efficiency and Precision with one Backup, but missed Flow. Our time was 99.9 s, more than twice the 45 s clock, mostly because we fumbled the route to the key with the keyboard. Since the help text promises all three Seals for "a fast escape", we read Flow as the speed Seal; a clean run under 45 seconds is the obvious next step.
What comes next
Level 2, Hold the Latch, flips the layout: the lock is on your side, next to the plate, and the key is behind the door on the far side, with a 55 second clock. That means a round trip through the door, so your Echo has to stand on the plate long enough for you to go and come back.

The game lists 24 missions over 4 chapters, so we have only scratched the surface.
Tips from our first runs
- Record a clean Echo. It copies every step, including detours. Walk straight to the plate and stop.
- Use the waiting time. While the Echo walks to the plate, move to the door so you go through the moment it opens.
- Press Hold on the key. Walking over it is not enough; the Hold bubble tells you when you are close.
- Watch the clock for Flow. One Backup was enough for two Seals; speed was what we lost.
- Plan level 2 backwards. Count the round trip before you record, then stay on the plate longer than feels necessary.


