Mods are executable code, and as such there is always some risk in running code that you do not know the contents of. There are many mods in the Steam Workshop that can be amazing to use, and this section is not meant to discourage their use, but there are some downsides which you should be aware of. Unlock All - Progression milestones are always unlocked.Unlimited Soil - Landscaping without limits.Unlimited Oil and Ore - Oil and Ore are not reduced from terrain.Hard Mode - More challenge for experienced players.In the game's main menu, they are found in the Content Manager in the MODS section, where they may be turned on or off.
There are a few 'built-in' mods that come with the game.