Steam Playtests
Codename Sunday

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Codename Sunday playtest

by Raine Berrow

A top-down, fast paced hero shooter. Kill tanks to upgrade yourself and become an undefeatable killing machine. Fight friends or foes in multiple engaging gamemodes and become the best of your kind.

Anyone with a Steam account can join, and it's free.

Access
Instant
On playtest since
Mar 19, 2026
Planned release
2026
Developer
Raine Berrow
Platforms
Windows, Linux
Players
Co-op, Multiplayer, Online co-op, Online PvP, PvP
Languages
English

How to join the Codename Sunday playtest

  1. Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
  2. Use the Codename Sunday playtest signup there. You're in straight away, with nothing to pay.
  3. The playtest shows up in your Steam library, ready to install and play.

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About Codename Sunday

Codename Sunday is a top-down, fast paced, competitive shooter where you play as tanks in a multiplayer arena. Choose from a list of powerful tanks to fulfill your needed duties, whether that is destroying other tanks to stay on top of the leaderboard, or fight against each others in teams. Pick from a variety of game modes, vote on different maps, but most importantly, find the best way for you to have fun.

From the game's Steam page.