I've been working for a while now on cleaning up and learning the Receiver source code, and thought I'd try making a mod for it.
The idea behind this mod is to give the player a random perk each round providing a slight advantage (or handicap!), hopefully changing how they approach the game a little bit. The title of the perk you've received is display in the upper left when you spawn and then fades out.
The mod is by no means complete, but I've implemented 12 positive perks so far. Their names are:
Pocketful of Shrapnel
The Unseen Bullet is the Deadliest
You can read the source code to find out what they do, but I think it's more interesting to just play and figure it out for yourself.
Speaking of source code: I haven't been able so far to get in contact with anyone at Wolfire to talk about licensing for distribution, so for now I can only distribute the mod through the source code on Github. (https://github.com/robinkunde/7DFPS/tree/mod_perks
You have to use the latest version of Unity 4, since I can't figure out how to port the game to version 5.
I hope you enjoy it!
Plans for the future:
UI to let you customize the mod in-game
Bug fixes & Performance improvements to the base game (I have a separate branch just for this, so you can enjoy these without the mod)