Thanks to everyone who jumped in on launch day! A couple of fixes are now in place:

Co-op

Choose your class in the lobby. Players joining from a Steam invite or "Join Game" were never given the chance to pick a class and were dropped in as whatever they last played. The lobby now has a class picker, and anyone can change their choice until the host presses Play.

Lobby now shows the room settings. World size, biome, difficulty and lane count are now visible to everyone in the lobby, not just the host.

Balance

Softened the mid-game difficulty spike. Nights 7 through 9 ramped far harder than intended, especially in co-op, where the adaptive difficulty could hit its maximum right as skeletons arrived.