While your file name suggests a specific repack of Cult of the Lamb (version 1.0.17 including all DLCs), for the best gameplay experience, I recommend focusing on the mechanics and progression added in those updates.

The DLC and late-game updates add significant content after you defeat the final boss.

You must obtain the Necklace of Light and Necklace of Darkness from the Mystic Seller. Give them to followers and sacrifice those followers to summon these legendary brothers. Later, turn them into demons to reunite them with their mother, Forneus.

Use the new portal to test your combat skills in "Boss Rush" or "Dungeon" modes to earn God Tears.

For a deeper dive into specific mission walkthroughs or platinum requirements, you can check out community-driven resources like the Steam Community Guide or PSNProfiles . Guide to 100 Percenting Cult of the Lamb - Steam Community