Master dark magic to summon and overthrow the elder gods, claiming and purifying magic for your own use. Each unique horror defeated enables a key breakthrough (via progression) into a selection of magical mods to unlock or advance your magical arts.
Elder Gods
Unleashed Magic
Natural Philosophy
Rising Challenges
This includes some which you may already know, The Wither, The Guardians, the Ender Dragon.
Deeper into the Abyssal Depths you will find and conquer Asorah, Cha'garoth, Sacthoth, J'zahar.
The Magic you liberate from them may be used to discover new horrors to defeat.
As you defeat each elder god you will gain new Dominion points to spend unlocking more advanced magic. Beware for these magics may lead to the discovery of yet more evils.
Thaumaturges know the Eldritch horrors, Blood Magi have long since dealt with Demons, and even Druids and Botanists can feel the cthonic power of Gaia below.
Your tools are not limited to magic, studying the world around you reveals potent powers waiting to be developed. Metallurgical tools, Machines which provide vast power, Guns and Explosives all aid your quest.
At the end of Science and Technology is power which may rival even the elder gods, armor yourself in active power, and forge whole, if unstable worlds.
As you defeat the elder gods, advance in magic, claim new knowledge, prove yourself a threat, or trespass into their realms, more evil is released into the world, increasing the difficulty of all the world's monsters.
As such building up your infrastructure and defenses is key to avoiding devastating setbacks. Plan wisely, because some challenges can escalate beyond your reckless acts.