[2021] When will ECO games be wipe for the last time?????

You don't need to wipe, if you don't want to. Some Updates will always require a wipe when specific changes are made - this can be expected for full release as well, as Eco will be continously developed after EA as well. Keep in mind Eco is made for 30 day cycles. You can always stay on a old version as well :)

Eco is a continous game development. Of course there will be a version 1.0 that ends Early Access, but major changes will be coming forever - just like in MMOs.

Mods on Steam will likely not make it to the game, simply because we offer the game outside of Steam as well. As far as server control goes we have a lot of configurability but no RCON yet. Modding support is available and planned to be expanded a lot towards the end of Early Access. We also offer full Source Code access as a backer tier.

Mods can be automatically installed on servers via mod.io.