Survival minion and Doom Bots mode in Howling Abyss
Here is an idea. It's co-op vs AI. Purple turrets, Inhibitor and Nexus are invulnerable. Nearly all the Towers are Blue except for the ones near the Purple Nexus. It will be similar to "Legion TD", a lesser known mod that is playable in Warcraft III and Mann vs Machine, a survival mode in Team Fortress 2.
Your objective is to survive by killing waves of minions that slowly level up and get stronger. Eventually enemies from the Jungles of Summoners Rift and Twisted Treeline become part of the minion waves and reward champions with buffs. As the Champions survive and level up, Doom Bots come in and aid the minions and jungle monsters. As it gets more difficult, 2 doom bots arrive and join the attack. Doom Bots can be the same kind such as having 2, 3, 4 or even 5 Doom Bot Wukongs attacking at once! After surviving the easiest doom bots then more challenging Doom Bots come to attack, such as fighting multiple doom bot Lux's or Doom bot Ziggs etc. Even a mixture of different Doom Bots come to attack. Eventually a monster boss such as Baron Nashor or Vilemaw gets summoned to attack and is the final boss of the game. If the team survives, then multiple Baron Nashors or Vilemaws attack endlessly until the blue Nexus is destroyed. When the Champions are defeated, a high score is shown. The score can be in an international rank on who got the highest score in this mode.
There can newly created Doom Bots that we have never faced before, preferably every champion has a doom bot version of itself to face! If there are more than 5 doom bots, then quantity based doom bots should be much weaker and easier to kill. If there just between 5 to one doom bots attacking then it will be similar to Doom Bots mode. If there is just 1 Doom bot at very late game, then he or she will have the health of 5 Doom Bots!
Towers that the team owns can be resurrected, upgraded with better crowd control, attack, defense, self repair and more. Allied Minions can also get upgraded like the towers. The Nexus can have its armor and self repair abilities to increase game survivability.
This should be a good alternative mode for people who are not in the mood for the summoners rift, but just want to grind Influence Points.
What do you guys think?