Old School RuneScape runs every skill on one shared experience curve, so a single formula answers most progression questions: how much XP is left, how long the grind takes, and which levels are worth pushing for.
This hub starts with the XP calculator and will add drop-rate and combat planning tools as they are built.
Level curves, enchanting planning and farm math — every formula, computed.
Open →Know which crop pays before you plant — gold per day, harvests and season math.
Open →Marketplace cuts, DevEx rates and pricing math for Roblox creators.
Open →Breeding maths, power ladders and combo data.
Open →Production planning for Satisfactory: node output, belt throughput and machine counts, worked out from the recipes.
Open →Factorio production planning: machines from a target rate, belts from machine demand — the ratios, computed.
Open →Missing a feature or found something off? Tell us — user suggestions decide what we build next.