Secrets (13)

Begin in the Northmost area, digging out gold to the east and leaving the westernmost column untouched. Build basic rooms and research Warlocks in the Library. Create a large Treasure room near the Gem vein. Use the Torture room to get Mistresses and sacrifice Warlocks. Train 6-7 Mistresses, 2-3 Bile Demons, and 1 Dragon in the Training Room until they reach level 10.

Clear enemies to the west and south with your level 10 creatures to obtain the "Invisibility" spell and claim tiles.

In the North area, break the southern door to face heroes on islands. Use an Imp with "Invisibility" and "Speed" to claim tiles and reach the three doors. Deploy Mistresses to defeat heroes with "Lightning" and "Drain" spells. Break the western door to find an "Increase Level" special.

In the Centre area, navigate the keep, avoiding boulder traps. Find a free Horned Reaper(6) to the east and a Temple with Beetle(4) and Spider(4) to the west. Sacrifice for another Mistress and train them. Break doors one at a time to overcome opposition.

In the South area, similar to the North, all doors lead to the hero keep. The left door leads to a boulder trap. The centre doors offer rewards, including a "Steal Hero" spell. The right door leads to the final dungeon.

In the Southmost area, breaking the first door attracts many heroes. Kill them individually. Use an Imp to claim tiles and expand control. Use a Bile Demon or Horned Reaper(10) to break doors, some of which have boulder traps. Entering rooms spawns more heroes. Alternatively, have the Imp claim tiles to a dead end in the centre and attack the heart room.