Instead of hacking, "repack" your time . The event repeats every month. Use this guide to score 20-30% higher each run. The rewards (the Stolen Crown skin, the sibling-themed relics) are achievable at the 8-10 million point range without cheating.
If you run out of space, feed the Princess minimal treats . Just enough to keep her from de-spawning. The "Sibling Rivalry" event punishes neglect, but a single level 1 treat every 20 minutes prevents her tantrum. sibling rivalry necromerger guide repack
Maximize Cannon damage upgrades. Avoid spending too much Steel on Anvil 4 unless aiming for a 10M+ score. Instead of hacking, "repack" your time