Gatecrashers ("Game Mode" idea)

Omg this is such a good idea!
You could even expand on it!
Listen to this:

Making a line of planets like this: O-o-o-0-o-o-O with at each end the players and you can go to the "next planet " by the teleporter (represented by the:"-"). Having like a tug of war style game. Also the middle planet is smash able with like 10 engines. So you cant just instantly smash and if you put the resources in it the other player can get more units to push you back and might even retake the middle planet and stop you from smashing. This would almost make it balanced too! Someone make this now xD!!!

A game with create-unit enabled could make the teleporters a-la Murder Party, but I don't see a way to link them, that appears to be handled entirely within the engine. You'd need a caster to ally with both players and link the gates.

Also not sure about indestructible teleporters, even avatars just have a lot of hit points (but amusing 1 metal, so you reclaim them in an instant)

This is like Thermo/Setons but with an entire planet in between the two chokepoints; pretty cool.

I actually think it would be pretty interesting with very small/low-resource planets on either side. Less resources and less focus on attacking enemy resources put the focus entirely on tactics.