Robot Entertainment has released the Artifacts of Power add-on for their action tower defense game Orcs Must Die. The title has received a new update as well, automatically available for owners on Steam.

The DLC packs two new weapons, and two new traps for use in your spellbook. Normally it’s $2.50, but a 20% launch discount drops it to just $2 flat through most of next week.

The aforementioned base game patch adds a list of bug fixes and improvements. From the change log:

• Added a user.cfg option to limit your frame rate “forceFPS=X” where X is what you do not want it to run faster than (for example: forceFPS=30).

• Added custom keybinding using user.cfg

• Fix for the Tenderized achievement.

• Fix for the fireball achievement.

• Switch to a hardware cursor to help people with slower machines.

• Fixed up the cursor acceleration option slider to make it more useable.

• Fixed up pathing near the doors on Twin Halls.

• Fixed the bug where you could have both costumes on at the same time.

• Fixed an issue where some levels, like Gateway, would crash the game.

• Fixed the text for the costume weapons if you had a particular weaver set selected

• Fixed “Oiled Gears” Weaver Upgrade

• Fixed a bug in upgraded Swinging Mace. It wasn’t doing what it was supposed to. It is now.