What are some of the dankest custom games out right now besides Overthrow and Pudge Wars?
I'll post my top three that are well done but they are kind of dead on users and player base since no one really knows about them:
Touhou Defence of the Shrines
http://steamcommunity.com/sharedfiles/filedetails/?id=310066170
This one implemented it's own touhou models to replace Dota heroes along with various new icons and new items. It's pretty much an entirely different MOBA with a different map but I think it's possible to play on the Dota map. It's similar to where there are three lanes but only two different raxs then the ancient. I played around two or three games of it and it seems pretty fun the roster of touhou girls is around ~20ish probably a little less but they all seem different with their abilities and can be a nice change of pace from Dota. I'm not sure what the meta is for the game and how long matches usually take but they took around 25 mins or more last time I played it.
Custom Hero Survival
http://steamcommunity.com/sharedfiles/filedetails?id=302247405
A PvE Custom Game where you select one Dota hero then choose their spells in the game leveling them up over time and choosing which ones would be best against creeps, up to seven I believe, and you have to survival against various mobs of creeps. They have a new set of items within the game and the creeps have different spells and abilities making it some what difficult, including a few bosses. I usually just play this by myself when I'm taking a Dota break since it's not a team game since everyone faces different mobs in their own little square and it continues until you die or the last boss (I never made it to the end yet so I'm not sure). Pretty fun time sink if no one else is online and you just want to play something for a while.
Sniper Duels
http://steamcommunity.com/sharedfiles/filedetails?id=468785151
Uses the same map as Overwatch but the item delivery is only in the middle and there is no kobold throwing out gold for people or giving out XP. Everyone is Sniper in this game mode and you have five abilities: Assassinate, Machine Gun, Shotgun, an escape, and a shield. Along with a few silly items but it is extremely fun just a bunch of people running around as sniper shooting bullet projectiles around the map trying to kill each other until they get to 20 kills. This would probably be great for an inhouse or getting a group of friends to play but I haven't managed to get a lobby of ten people yet.