ARC Raiders players on PC can use a trick to manipulate the game. They do this by changing their system date while in the game, forcing the state forward and tricking the game’s internal calendar. By doing this, some users have revealed future map conditions, trials, and other additions.


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Rules:
aggression based matchmaking. the game puts you with people who pvp as much as you do.
So if I only pve, it will place me with other non violent players? Neat!
Yes. I play stealthy and non-aggro and most of the time my lobbies are full of people dicking around with no fear of aggression from other people because the rats are busy killing each other in the aggro lobbies.
For the most part, yes. Not a guarantee but I played like ~50 some hours over winter break, all solo, all peaceful. Ended with like 3 deaths due to players.
It is, however, not smart enough to separate solo and party behavior. So if you play aggressive with your buddies but peaceful solo, there is a very painful transition period.