First idea, is to maintain players active and avoid to much building and animals / thralls on the server for performance. And new players have a better chance vs old players.
- The decay in Rust is % of the total cost of the building in materials. For example 10% per day should be fine. + the normal decay timer but for 10 days.
- Enable pets and thralls feeding system again + add a lifetime for thralls and pets (for example 2 weeks).
Second idea, trading bench.
- In Rust the vending machine.
Third idea, a seasonal full wipe every 3 months.
Fourth idea, something like the helicopter/chopper, some alpha animals and thralls who cross the map hunting players.
I can add too full building damage 24 hours a day and no event log.