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Inbox Duel

Demo available

YukisoraDiscovered Oct 7, 2026

About the game

You're the new intern, and the only weapon you have is email. Duel your coworkers with passive-aggressive cards until they get fired, then come for your boss's job. Inbox Duel is a roguelike deckbuilder about climbing the office one promotion at a time.

Original Steam description

Fire your boss. Take their chair.

Inbox Duel is a single-player roguelike deckbuilder set in the worst office you've ever worked in. You start as the intern. Everyone above you is a card duel.

Duel your coworkers

Every email is a monster and every reply is a spell. Wear down a coworker's patience and they're fired. The guy who microwaves fish has a deck too.

Build a deck that breaks the org chart

After each fight you pick a new card. You can buy perks from the vending machine, open packs, and shred what you don't need. 150+ cards and 60+ perks to build with.

Make the number go up

Perks stack. Get the right ones together and a single turn hits harder than the whole fight before it.

Get promoted. No raise.

Beat your boss and you get their job and their nameplate, but not their salary. They ride the elevator down. You ride it up.

Fire the CEO

A hundred floors and six bosses stand between you and the top. After that there's a daily run where everyone plays the same day, eight difficulty levels, and an endless mode for people who never go home.

Demo and release information

A Steam demo was found at the latest check. Confirm it is still available in your region on Steam before downloading.

Steam demo, playtest and Early Access: what is the difference?

Information & artwork: Steam · Last checked UTC