Current version 0.5

Office:

Use the whiteboard to confirm when you are ready.
Just the lockers to change your character and they're equipment.
Change the waiting music but clicking the jukebox.
When all players a present and ready, open the door to begin the game.
To invite a friend over Steam, load the game using Steam and open the Steam overlay, then invite the friend. (They must have opened the game using Steam and be waiting in the main menu for them to join).

Game:

Defeat the enemies invading the world to get the boss to appear.
Open the boxes we spawn in to pick up upgrades for your equipment.
If an ally is injured, stand beside them to help them recover.
We will provide upgrades while transitioning between worlds.
Once the boss is defeated, enemies will stop spawning and a door will apear when they were. Allowing you to continue to the next world.
Defeat all the bosses to end the invasion into multiple worlds.

Realm Guards screenshots