Mods introducing new content into the game.
Improve upon kapaer's 'Islands World' mod. Removes landfill (to force island-hopping) and adds Dark Matter Replicators enabled to ore tier to smooth out the lack of resources (the challenge should be a lack of land anyhow). Goal on initial island is to get to trains to make more land available.
Collections of mods with tweaks to make them work together.