I just watched a few lets plays of Rust (still haven't had a chance to actually play it yet) and I'm realizing that FRONTIERS' survival system is like a friendlier, less antisocial version of Rust. People have been mentioning this for a while now but this is the first chance I've had to really look into it. The Blueprints system, ore mining system, crafting system, inventory etc. all resemble Rust's systems. Hunger and the like are more forgiving in FRONTIERS but otherwise generally the same. The only major places where the survival gameplay really diverges are in paths, combat and home construction.
Point being, if anyone has feedback based on their experiences with Rust it could be valuable as a sort of 'parallel playtest.' If you think FRONTIERS could improve on or avoid something that they've done post it here.