A claim cooldown the client cannot argue with
Reward the claim and start the next cooldown in one transaction, so a double-submitted form pays once instead of twice.
Faucet Mechanics
Claims, cooldowns, reward tables, mining accrual and the maths that keeps a faucet solvent.
7 entries
A weighted reward table you can actually afford
Pick a prize by weight, and compute the expected cost per claim before you launch instead of discovering it from your wallet balance.
Idle mining accrual with a capacity cap
Earn while away, but only up to a ceiling — computed on read from a timestamp, so there is no cron and no per-user tick.
Fuel-gated accrual: make the miner need feeding
Production runs only while fuel lasts, and fuel comes from doing the thing you actually want done. Turns idle earning into a loop.
An internal credit economy with an admin-set rate
Earn in integer credits, convert to coin only at withdrawal, and keep the rate in settings. Repricing the whole site becomes one field.
Measure what a claim costs, do not model it
Compute cost per claim from payouts that actually happened. Two accounting bugs make the modelled figure wrong, and both are easy to ship without noticing.
Which lever to pull: more chances or a better rate
Payout is chances times value per chance times the rate. Users feel the count and barely notice the rate, so the count is the lever that changes behaviour.