Telsiz · Bumba Games

You are the voice on the other end.

You're on the night shift. The radio crackles, and someone is asking for help. You decide what to tell them, and they act on your word. Your choices are remembered, and they decide how the story ends.

See the games

Telsiz in short

Telsiz is a series of story games from Bumba Games, the games arm of Bumba Group. In each game you text with a character in trouble: they write in real time, go quiet when they're busy, and let you know when they're back. The games open in your browser with nothing to install and no account, in English and Turkish. iOS and Android versions are on the way.

Last updated: 25 October 2026

Games

Out now

Storm Channel

There's a voice on channel 16. The boat is empty.

A November night on the Black Sea. Deniz, alone on a fishing trawler, reaches you on the coast radio night shift. The battery is draining and the storm is coming.

Thriller, drama · About a day in real time (two nights); about 40 minutes in fast mode

Out now

The Pigeon

1243. You have five pigeons. Every letter takes wing.

The night after the rout at Kösedağ. Yunus, an apprentice scribe stranded at Taşhan with his wounded master, writes to you, the keeper of Kızılhan, by carrier pigeon. He carries a sealed letter, and Mongol scouts are on the hills.

Historical drama, thriller · About a day in real time; about half an hour in fast mode

Out now

Polar Night

Ten messages per pass. The sun won't rise.

Polar night in Antarctica. Ada, a glaciologist left alone at the station after a fire, writes over the satellite link to you on the Polar Desk night shift. You can only send a few messages, and someone is knocking at the door. Or nobody is.

Thriller, mystery · About a day in real time (three nights); about half an hour in fast mode

How do you play?

  1. A message arrives

    The character writes to you: where they are, what they can see, what scares them.

  2. You decide

    At every decision you pick one of two replies. Sometimes the clock is ticking; sometimes you have to work out a code or a name yourself.

  3. The story waits

    When the character is walking, sleeping or busy with something, they really do go quiet. They'll let you know when they're back, and you pick up where you left off.

  4. Your choices are remembered

    Small choices add up and big decisions split the story. At the end, cards show what became of every decision you made.

Frequently asked questions

Does Telsiz cost anything?
No. The games on the web are free and have no ads.
Do I need an account?
No. Your progress and badges are kept in this browser only, so you can play without signing up.
How long is a game?
Because the story runs in real time, a game spreads over about a day and two nights, mostly in waits while the character is busy or asleep. Once you've finished a game, fast mode unlocks and removes the waits.
What if I make the wrong call?
Some decisions put the character in danger, and some end the story early. If you reach an early ending, you can rewind to the last decision point and try another way.
Can I play on my phone?
Yes. The games open in your phone's browser and can be added to your home screen. iOS and Android apps are on the way.
Who makes it?
Telsiz is a game from Bumba Games, the games arm of Bumba Group.

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