Each Gem Perk targets a different part of a run: Coins per log sold, logs carried at once, mutation chance or Gems from trees. Buy whichever one fixes the part of your run that's slowing you down most. Once bought, a perk is permanent and stays with your save. You'll find them in the Gem Perks tab of the Shop, and each later purchase of the same perk costs more.
Perk
Items
Sell Value
Logs sell for 10% more Coins.
- Gem cost
- 25 Gems
- Bonus
- +10%
- Affects
- Coins from each log sold
Bigger Bundle
Carry one extra log at a time.
- Gem cost
- 30 Gems
- Bonus
- +1 log
- Affects
- Logs carried
Mutation Luck
Mutation chance rises by 5% to 15%.
- Gem cost
- 40 Gems
- Bonus
- +5% to +15%
- Affects
- Mutation chance
Gem Value
Trees give 20% more Gems.
- Gem cost
- 50 Gems
- Bonus
- +20%
- Affects
- Gems from trees
Sell Value and Bigger Bundle for Logs
Sell Value costs 25 Gems and adds 10% more Coins to each log you sell. Bigger Bundle costs 30 Gems and lets you carry one more log at a time. One raises what each log brings in, and the other raises how many logs you can hold.
Because the bonus is a percentage, the extra Coins grow as each sale gets bigger. Pick Sell Value when the Coins per log are what's holding you back. Pick Bigger Bundle when carrying is the bottleneck.
Mutation Luck and Gem Value: Mutations or Gems
Mutation Luck costs 40 Gems and raises mutation chance by 5% to 15%. Check the exact percentage on its card before you buy.
Gem Value costs 50 Gems and adds 20% more Gems from trees. Pick Mutation Luck when mutations are what you're after, and Gem Value when you're short on Gems.
Coin Upgrades Reset in Each New Forest
Coin upgrades last only for the forest you're in, and a new forest starts from zero. For what each one does and costs, see the Tool Upgrades guide.
