Let teamwork.tf decide what gameserver you want to play on.
increased_maxplayers, fortress, fun, alltalk, Rushy, Zombie, payload, nocrits, survival, zombie fortress, zombie survival, zombies
alltalk, arena, ba, breakout, custom, f, freeitems, gamemode, halloween, increased_maxplayers, jail, jailbreak, prison, prisoners, wln.tf, won
Random server mode
This will pick any community gamemode (hence not official gamemode's), and choose a random server from that list with at least 5 players in it. This is the best way to get in touch with the funkiest maps/gamemodes/people!