Teachers & organizers
Set the game up the way your school needs it — your safe zones, your dates, your rules.
- 01Edit the standard rulebook to match your school's policies, publish it, get your class code.
- 02Add the roster and draw secret targets — each player gets a private code that unlocks only their target.
- 03Run the season from the console: stamp SOAKED, set Purge Day, post announcements. The board updates for everyone, in the app and in the browser.
Students
Got a class code from your teacher or organizer? Enter it here or in the app and you're in — rules, board, your target, all of it.
Target generator
Organizers: once the roster is locked, draw the chain here. Every player hunts one target, no mutual matches, and the draw never leaves your device.
The standard rulebook
The rules most schools play by — water guns only, immunity items, safe zones, Purge Day. Copy it, print it, or customize and publish it under your class code.
For parents and schools: no accounts, no location tracking, and the game itself is free — no entry fees, no pots, no money anywhere. That is true in the browser and true in the Android app, which is this same site in a shell. Game data is encrypted in the organizer's own browser before it ever reaches us; we store unreadable ciphertext, so we couldn't look at a roster even if we wanted to. Water guns, sunshine, and one link. That's it.
Is it safe?
The documented incidents, what actually causes them, and the five rules that remove most of the risk. Written for parents and principals, with a printable safety agreement.
Apps compared
Splashin, Catcher Games, HuntinHuntin, Parabellum, and running it with no app at all. What each one costs and which ones track player locations.
Beta · Android
Now in beta on Android
The same game you can open in a browser, as a real app: its own icon on the home screen, full-screen play with no address bar, and a spot on Google Play when the listing goes live. It is a shell around this site — no second server, no account, no GPS, and the zero-knowledge storage is exactly the same.
- A home-screen icon that opens straight to the board
- Full-screen play, no browser bar
- No GPS, no account, nothing new collected
- Free, like everything else here
Right now it is an invite-only beta for family and friends: a sideloaded APK first, then Google Play internal testing, then everyone. Push notifications are not in it yet; when they are, the app page will say so, not before.
What is Senior Assassin?
Senior Assassin is an elimination game played by graduating high-school seniors, usually across a few weeks in spring. Every player is secretly assigned one other player as a target. You eliminate your target by soaking them with a water gun outside the agreed safe zones, prove it with video or a witness, and then inherit whoever they were hunting. The circle tightens each round until one player is left dry.
It goes by other names depending on where you are — Senior Water Wars, Senior Splashin', Senior Tag, and in some schools Paranoia. The names are mostly regional, and the underlying game is the same one.
Do you need an app to play?
No. The game needs three things: a rulebook everyone agreed to, a way to draw a target chain where nobody gets themselves, and a way for each player to see their own target without seeing anyone else's. All three work as web pages, which is what this site is. Students open a link in whatever browser is already on their phone. Nobody has to download anything and nobody makes an account.
There is now also an optional Android app, in beta. It is this same site in a full-screen Android shell: a home-screen icon, no browser bar, and a Play Store listing once it opens up. It does not add a server, an account, or GPS, and it does not add push notifications yet. A native app can tap a player on the shoulder and a web page cannot; when ours does, it will be opt-in and announced on the app page first. Until then the honest pitch is the same as the web: a link or an icon, and the board. If your class needs the game to ping them today, the comparison page says which apps do that.
Is the app free too?
Yes. The game is free everywhere it runs, and the app has no pro tier, no unlock, and no entry fee inside it. The website stays free with a little advertising; the app is the website, so that is the whole business model. If anything about that ever changes, the game itself will still be free — that is a rule of the product, not a pricing tier.
How do you assign targets?
As a single loop. Every player hunts exactly one person and is hunted by exactly one person, with no self-assignments and no mutual pairs — if two players hunt each other, the chain breaks the moment one of them is out. Doing this by hand with a hat and paper slips works for twenty players and gets error-prone past that. The target generator draws the whole chain in one pass, in your browser, without uploading the roster anywhere.
What are the standard rules?
They vary by school, but the common core is: brightly colored water guns only, an elimination has to be witnessed or recorded, school grounds and school events are safe zones, immunity items work until Purge Day, and you have a set number of days to eliminate your target before you are out for inactivity. The full template has all of it with editable blanks so it matches your school instead of someone else's.
The rules that matter most are the safety ones, and the record is clear about which: no vehicles, bright blasters in daylight only, no trespassing, and any adult who says stop ends it. Both deaths connected to this game involved a moving car. Neither involved being soaked. That page is here, and it is worth sending to parents before the roster locks.
Is it free?
Here, yes, permanently. Many versions of this game charge an entry fee and pay the pot to the last player standing. We do not do that and never will — it is a rule of the product, not a pricing tier. A game with real money on it raises the stakes on exactly the behavior you want players walking away from, and it is the single thing schools object to most.