These rules were found on Sims 4 castaway challenge — The Sims Forums
CAS rules
– Create a single young adult female sim founder that has 3 of the following traits: Outdoor enthusiast, loner, family oriented, Dance machine, Active, Geek, glutton
– must be female
– Has to have a nature aspiration
– looks like she could have stranded on an island
Moving in rules
-Move all family’s off the windenburg island
-bulldoze all lots on the island
-move your sim to the the mid-nowhere lot
-look for #TGGcastawaychallenge on the gallery and download this lot:https://www.thesims.com/nl_NL/gallery/5FC2F51DAF0011E58C7295621DDA1796?category=all&searchtype=hashtag&sortby=downloads&time=all&searchquery=TGGcastawaychallenge&max=50&maxis=false
-choose another lot on the island and plop a rocket down there
gameplay rules
-first day: Collect, fish, DONT LEAVE THE ISLAND
-Monday/ Thursday: grow your garden, collect, fish, survive. DONT LEAVE THE ISLAND
-Friday/ Sunday: you are allowed to leave the island at 06:00AM with one sim BUT you can only travel to one world and you have to survive in that world until Sunday 06:00PM. you an travel between lots and neighborhoods in that world. because of this, six am counts as a world too.
-talk to no one in the normal worlds. if you choose to travel to granite falls and go on vacation there, you are allowed to interact with bears, park rangers and the hermit. you cannot move or invite them to the island with you but you can have them get you pregnant while on vacation.
-repeat
general rules
-use the park grill only to brew herbal remedies.
-only gill fish and beetles on the firepit
-sleep on the bushes and rocks on the island. trust me, there are enough.
-same goes for peeing
-the only thing you can edit on your lot is plants and moving around objects. no buying unless its baby bassinets
-only visit other lots on the island if its the rocket lot to travel
-kids can eat from the cooler
-the only npc’s you can interact with outside granite falls are the mailman and the Grimm reaper
-when out in the city you can only prepare meals on grills you have the ingredients for
-babies can be aged up straight away
goals
– have 9 of each plant perfect quality.
– max fishing, gardening and herbalism
– complete 4 collections of you choice
– complete all nature aspirations
– have lots of fun