Press Kit

Press contact: press@boxof.cards

About Box of Cards

Box of Cards is a free online multiplayer party card game where players build ridiculous fill-in-the-blank sentences by shaping cards so they snap into the gaps. Instead of throwing cards under a prompt, each choice becomes part of one complete, over-the-top sentence. Each round, everyone sees the same sentence with blanks, players pick and tweak cards to fit, and the funniest result wins the round.

Factsheet

Title
Box of Cards
Genre
Online multiplayer party card game
Status
Released
Platforms
Web browsers (desktop + mobile)
Players
1–10 (3+ recommended), AI optional
Price
Free-to-play with ads
Languages
English, German
Developer
Tim Fehrmann (solo developer)
Location
Hamburg, Germany

Key Features

  • Cards snap into sentence blanks for fill-in-the-blank party humor
  • Every player is a unique animal avatar that reacts live to the round
  • Browser multiplayer for up to 10 players — private games via invite link
  • Optional smart AI players that reshape their cards — "swim" becomes "swimming" — to genuinely fit the sentence
  • No download required — runs on desktop and mobile browsers, with an interactive tutorial to get started
  • Built-in deck editor for creating and sharing custom decks
  • Save and share winning cards and full game history as images
  • High replayability through deck combinations and fast rounds

Developer info

Tim Fehrmann — solo developer, studied 3D & animation and applied informatics, makes games for fun and the thrill of solving problems.

The project started as a collaborative card game where players tell full stories together; the design settled on fill-in-the-blank humor, which became Box of Cards.

FAQ

Download or install?
No — browser on desktop or mobile.
Account required?
Not to play; only to create and save custom decks — sign in via Discord or Twitch.
Private or public play?
Private rooms via invite link.
Content rating?
Varies by deck; 18+ on adult decks.
Moderation?
User reports + manual review.
Affiliated with Cards Against Humanity (CAH)?
No.
Who made it?
Tim Fehrmann (solo developer).

Platforms & Tech

  • Requires stable internet; optimized for low-friction party sessions.
  • English/German localization with dark/light mode for comfortable gameplay.
  • Realtime via WebSockets, horizontally scaled NestJS game servers. Hosted on Hetzner.

Roadmap

  • Twitch integration
  • More avatars & reactions
  • Custom avatar decorations
  • More login providers (Google, Microsoft)
  • Release the Play Store app
  • Optional ad-free buy option

Monetization

Current model
Free-to-play with ads only.\nNo shop and no in-app purchases.
Planned option
Optional ad-free buy option.