Thought I might as well add to the slowly growing number of vector lists we have on here
This is for Vectrex stuff that exists on other platforms, although I don't mean stuff that's indirectly related, such as Berzerk for the Atari 2600 and 5200, nor the Star Castle handhelds and the like.
VecCaves II - Eat to Survive
Clean Sweep (kind of a stretch I guess)
Fortress of Narzod MineStorm Spike (on MineStorm/Spike cartridge)