Updates to Nation Red have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

- Local Coop: Added 3 and 4 player local coop support
- On-Line Coop: Players in game will get a chat message if a new player enters the lobby
- On-Line Coop: Team-wide perks are removed from the perk list once one of the players has already chosen them
- On-Line Coop: Chat message history added. Press PageUp/Down or Arrow keys Up/Down to scroll through your chat history
- Leaderboards are easier to navigate from the Statistics Menu
- Number of zombies in arena is now increased if difficulty setting is higher than default/normal. More zombies means faster and more difficult gameplay but also higher scoring
- Fixed losing Xp level upgrade if a boss was killed in the first minute of the game
- Added fps_max custom maximum frame rate command
- Difficulty level is now saved between game restarts
- Powerup time now decreases slower later in game
- Several smaller bugfixes

New achievements:
- Maximum -Kill at least one of each zombie boss type while not dropping your health below 100%
- Bullet Rain - Kill two Minigun zombie bosses within two minutes of each other
- Running On Empty - Survive for 15 minutes without holding or picking up any grenades