Summon Collector vs Volta Battery Bench

A laid-back idle summon & collection game. Tap orbs to summon spirits and grow your collection across multiple rarities. The more you collect, the more efficient your summons get, and progress keeps building while you're away — designed for chip-away-daily play. How to play - Tap to summon; new spirits join your collection book - Three parallel summon slots — check in whenever - Level up summon speed and rarity drop rates for the long haul - Offline progression (up to 2 hours) keeps you moving forward - Watch a video for 2x rewards / optional remove-ads IAP - Japanese / English supported Who it's for - Anyone who wants something to chip away at in spare moments - Collectors who enjoy chasing rare drops over the long term - Players who prefer idle progression over active battle Bite-sized for a quick check, with depth for the long term — at your pace.

Charge is money — and it does not sit still. Volta is an idle-merge game set on a Victorian galvanic battery bench. Brass voltaic cells sit on a bench grid: every cell builds charge on its own, but every cell also self-discharges, second by second, so charge bleeds away the moment you stop tending. That upkeep tension is the whole game — you are always racing your own leakage. Drag a cell onto a matching-tier cell to merge one tier up, from a Simple Cell all the way to a Grand Bank. Bigger banks hold and generate far more charge, but they also leak faster when neglected, so a merged bench is powerful and greedy at once. Buy the inverter and set cells beside it: the routing lines light up and every adjacent cell outputs double. Tap the charge to bank it as coin, then reinvest — fresh acid and platinum plates for more generation, gutta-percha insulation to slow the leak, a wider bench, and an Auto-Tender who sells for you. When you have sold enough charge, stack a New Pile: the bench strikes galvani sparks — a permanent +12% to everything — and the Galvani Vault keeps whatever you buy there through every reset. And every New Pile is now a real decision: swear the next pile to one of four Charter Schools. Volta's Charter generates furiously but leaks harder; Daniell's barely leaks but runs cool; Grove's makes every merge strike a surge of coin but prices the cells up; Faraday's sells dear from smaller jars. Complete a pile under a charter and its permanent mastery is yours — four levels per school, and which school you master first is yours to plot. Meanwhile the Commission Book keeps a patron waiting: twenty-eight commissions from the electrical age — the Lyceum, Sir Humphry Davy, the Royal Society, the Great Exhibition — each measuring your lifetime feats and paying in bench-scaled coin or galvani sparks. And when a jar truly brims, the Exhibition Gallery is waiting. Twelve plinths in three wings each ask for a cell of an exact tier presented at full charge — the leak itself guards the museum door. Donating retires that cell from the bench forever, but its exhibit answers with a permanent echo, full wings strike greater bonuses, and each wing unlocks a cosmetic bench finish — ebony, cherry, mahogany. The Bench Record keeps your whole career in one ruled column. It runs while you are away, but so does the leak. Come back to the welcome-back sheet and see the NET: sometimes a tidy gain, sometimes a low-charge warning that your bench nearly drained. • The leak is the hook — cells generate AND bleed, so neglect is punished • Drag-merge nine tiers of brass galvanic cells • Adjacency routing: cells next to the inverter output double • Sell charge for coin; buy acid, plates, insulation, a wider bench • New Pile prestige banks permanent galvani sparks; the Vault persists • Swear each pile to one of four Charter Schools — a boon, a price, and a permanent mastery track • A Commission Book of 28 patrons pays coin and galvani sparks for lifetime feats • The Exhibition Gallery: retire brimming jars to twelve plinths for permanent echoes and earned bench finishes • Offline net can be a gain OR a drain — tend the bench or lose charge • A once-a-day Morning Charge tops every cell and gifts coin — a missed day pauses your run of mornings, never resets it • Two optional extras extend the free 1-hour offline cap to 8h/24h — never pay-to-progress • Fully offline, no account, nothing collected Keep the current flowing.