Played this with a friend, was fun but came across some points where felt like we were missing something:
1. Who loses when both travelers move onto a space at the same time?
2. The game turned into avoiding moving onto the same space of another traveler. It was easier to force the opposing traveler to move onto your own traveler's space than try the win condition. We purposely avoided this to extend the game past ~8 turns, since the only way to avoid such a loss is the finite source of the two opposing color gates given at the beginning.
Perhaps changing that rule to "If a Traveller of the current player's turn moves so that both Travellers are on the same space, the game ends immediately, and the player whose Traveller moved onto the space loses.", or "travelers can't move through gates where the resulting space has another traveler" would be better.