I noticed that other games have forums or threads for homebrewed and customized rules, so I thought I'd start one here. Feel free to post your own, the more we have, the more people can use!
Now, it's homebrewed so there is no guarantee of balance or testing. These are just fun little tweaks you can add to the game to alter it slightly. So that everyone's on the same page, let's have a format for the rules heading:
Difficulty: + (makes the game harder to beat for the marines) or - (makes the game easier to beat for the marines)
Type the details of your house rules here.
Each marine Team gets a set amount of special Fate tokens at the beginning of the game. These tokens are like Support tokens, except that when you sacrifice one it allows you to automatically survive a Defense roll, regardless of the number of Genestealers, or to automatically hit the maximum number of times (counts as rolling a 4 for Green Team's attack, 3 kills for the minigunner on Red Team, the Pyschic attack of Grey team will kill all genestealers in the target swarm, etc.)
The caveat is that there is no way to restore these tokens, once used they are gone forever. They are meant to counter the bad luck that the die brings, while also giving players a little extra oomph in case they want to take risks. Keeping this in mind, a lower number of counters keeps things exciting while a high number (3+ per team) makes the game too easy. Consider starting with 1 or 2 at the most.
Whenever an Event card says "spawn genestealers", draw these new genestealers from the Genestealer deck instead of from the appropriate blip pile. This does not affect the Major and Minor spawns that happen in the 4th phase of the turn, only special events like "Out of Thin Air" and so on.
Have a go at it!