Changes:
- More nodes of oil now spawn in Mysterious Caves island, but amount of oil is reduced.
- Increased amount of extra damage that biters do at night from 10% to 50%.
- Reduced the rewards from GUI island quests by ~30% (slightly less for easier difficulties).
- Reduced the coal reward scaling with leagues from launching rocket.
- Reduced the coin reward from launching rocket, but now the amount scales with leagues.
- Kraken rewards now scale with leagues.