House rules we have used at our store (you can look up most of these):
Furball rules with 30 point ships, 25 point ships, 40 point ships, 6/12/18 obstacles on a 3x3
Hunger games furball rules
Cross faction 59 point fleets, faction restrictions removed, minimum 2 ships of differing factions
Epic with fleet requirements and objectives
50 point small ships only dogfight
We have also done many games with more obstacles, because FLYING!
And soon... Racing around a 3x3 mario kart style! Thinking of 40 point ships, saw someone do it with pole position being the one with least build points and moving backwards from there. Can't wait to try some more formats.
And yes, we play "competitively" too. Usually during store champs and regionals we focus more on 100 point dogfighting, but still loosely mix in those other formats above.
Hell, tomorrow I'm TO-ing a "house rule" tournament mixing 3 formats. And I expect 30+ people! It will even be on Backtodials twitch feed.
So, just wondering, what does "Hunger Games" entail? Whatever it is, it sounds cool.