The Vietnamese and English versions are the authoritative ones. Other translations are for convenience and have not been reviewed by native speakers.
Paper Legion is a graph-paper game about cutting out paper warriors and marching them at the enemy castle, published by an independent developer. Contact: daotung.it53@gmail.com.
No account, no email, no access to contacts, photos, GPS location or microphone.
We do NOT collect names, email, login accounts, contacts, location, photos, microphone or camera.
The match against the computer runs entirely on your device — cutting, the battle simulation and the computer opponent are all local, with no network needed. The app reaches the network for two things: fetching ad configuration, and downloading images that promote our other games.
Online play (shipped 2026-08-11) does send data to our server, and only when you open that mode: your display name, the 4-character room code, and your in-match orders (unit type, lane, cut accuracy). There is no messaging between players.
Your display name defaults to your device model (for example "iPhone15,2") until you set one. It is shown only to your opponent in the room and is deleted with the room.
A room and everything in it lives minutes at most: an empty room is deleted after 60 seconds, an abandoned match after 45 seconds of silence. We keep no match history, no results and no leaderboard.
| Data | When | Why | Where it lives |
|---|---|---|---|
| Settings and progress (language, handedness, audio, difficulty, best score) | While you play | Remembering your choices | On your device only — never sent anywhere |
| IP address | When the app fetches ad configuration or cross-promo images | Network plumbing, abuse prevention | Server logs, deleted after 30 days |
| Advertising ID, device info | When an ad is shown | Advertising (Google AdMob) | Google's servers |
The game shows a full-screen ad after a match, served by Google AdMob, which may collect your advertising ID and device information. See How Google uses data.
Users in the EEA/UK are shown a Google UMP consent form before personalised ads are enabled, and may choose non-personalised ads. On Android you can reset your advertising ID under Settings → Google → Ads.
The only thing a player types is a display name (16 characters max) in online play. There is no messaging, no comments and no avatars, so there is no channel through which players can harass each other.
The server strips control characters and truncates the name to 16 characters. Names are not stored: they disappear with the room after a few minutes.
Saw an offensive name? Send the room code, the time and a screenshot to daotung.it53@gmail.com. Rooms delete themselves within minutes, so without a screenshot we cannot look anything up.
We do not sell data. Data is shared only with Google AdMob for the advertising purpose above. There is no leaderboard and no public data of any kind.
Inside an online room your opponent sees your display name — that is everything they receive.
Settings and progress stay on your device until you clear the app's data or uninstall it.
Online room data (name, room code, in-match orders) lives in server memory, is never written to disk, and is deleted when the room expires — minutes at most. Restarting the server wipes it all.
Server logs (IP address) are deleted after 30 days. We hold no records tied to you personally, because there are no accounts.
Because there are no accounts and no personal data leaves your device, there is no record tied to you for us to delete.
To wipe everything locally: your OS Settings → Apps → Paper Legion → Clear data, or uninstall the app. For anything else, email daotung.it53@gmail.com.
The game is not directed at children under 13 and we do not knowingly collect their data. Contact us if you believe your child has provided data and we will delete it.