Skills & Progression Crafting-related skills, skill tiers, and challenges. Skills & Challenges Skills Two crafting-specific skills are available in the Skills menu. Both are purchased with skill points. Crafting Discount Reduces the money cost of every craft. Cost: 25 skill points per tier  |  5 tiers Tier Money discount 1 20% off 2 25% off 3 30% off 4 35% off 5 40% off Crafting Luck Gives a percentage chance to receive a free second copy of the crafted item on every successful craft. Cost: 60 skill points per tier  |  3 tiers Tier Double-output chance 1 5% 2 10% 3 15% Challenges Two repeatable crafting challenges reward skill points when completed. Progress carries over across sessions. Challenge Tier 1 Tier 2 Tier 3 Skill pts per tier Craft items 300 crafts 600 crafts 1,000 crafts 15 Use gold in crafts 150 crafts 300 crafts 500 crafts 30 The Use gold in crafts challenge counts any recipe that contains Gold Bar or Gold Ore as an ingredient (e.g. Golden Shark, Gold CPU, Turf War).