I downloaded all kinds of vehicles and assorted stuff but how do I get them into the game to use?

I am plannning to "port" my Stormworks sub to Archean. Here I am using 24 cylinder diesel-engine for a direc-tdrive, using pitch-changing-prop. The needed air is in compressed tanks to feed the engine (...and the crew). Doing something like this in Archean is a bit too limiting...currently. Yes...we have batteries and could recharge them underwater using the RTG's, but this takes way too much time. Like driving some minutes and recharging for hours to continue driving. Since we don't have trees (yet), we...

hi i serch and search , install a lot of mining drill at the botom of the ocean , and nothing , or/thungsten and other but no lead , can you help me please ?? thanks

basically the question , because if its the latter speed up should be a thing for flights. just want to know before i purchase

Idk if its some kind of bug related to the rework of ores and/or chain crafting, but i cant successfully craft a Plastic in crafter since the new update even tho the crafter is connected to a crate with both Silicon, Carbon and it has full liquid gas storage. Plus, its able to craft anything else when the necesseary resources are present in the crafting box. My guess is that the crafter can only outsource materials inside the box when its connected to it and cannot see the resources it has in it self. ...