Idle RO is a browser-based idle RPG built on classic pre-renewal Ragnarok Online mechanics and connected to the Solana blockchain. Players create characters, assemble a party, and watch it fight, level, loot, and gear itself across more than a hundred authentic maps and four difficulty tiers — online or offline.

Every combat number is the real formula: attack speed, soft and hard defense, elemental and size modifier tables, card effects, and refinement odds all behave exactly the way a veteran would expect — most skill data is imported directly from the authentic pre-renewal databases. On top of this proven game core, Idle RO adds a player-owned economy: loot grinded in-game converts into vZeny, an in-game currency that can later be converted into $ZENY, the project's on-chain token — plus a player-to-player marketplace where equipment, loot, and cards change hands.

The design philosophy is simple: the game must be fun before it is financial. Idle RO is a real game with real depth first; the Web3 layer exists to give players true ownership of the time they invest.

Idle RO runs an entire RPG party for you. Characters pick their own targets, close to the right range, cast the spells worth casting, drink potions when they are low, equip upgrades that drop, sell junk, and walk to the next map when they have outgrown the current one. The player's role is that of a commander and economist — building characters, choosing party composition, managing gear, refining equipment, and deciding what to sell and what to keep.

Authentic combat math

Idle RO is not "inspired by" classic MMO formulas — it implements them, formula for formula, with skill stats imported straight from the authentic pre-renewal databases:

• Attack speed — 50 / (200 − ASPD) attacks per second, derived from job, weapon type, AGI and DEX.
• Physical damage — status ATK, weapon ATK, refine bonuses per weapon level, and a damage spread that tightens as DEX rises.
• Magic damage — MATK rolls between INT + (INT/7)² and INT + (INT/5)²; bolts hit once per skill level at 100% MATK, the classic way.
• Defense — hard DEF as flat subtraction, soft DEF as a percentage; MDEF works the same way. Crits ignore DEF entirely.
• Full modifier tables — the 10×10×4 element matrix (negative values heal, as in the classic game), weapon size vs. monster size, and race modifiers apply to every hit.
• Real skill data — SP costs, cast times, after-cast delays, durations, elements, and hit counts are imported per level from the pre-renewal skill database, not invented.

Wallet-native accounts

There are no passwords. Players sign in with a Solana wallet — Phantom, Solflare, Backpack, or any wallet that supports the Wallet Standard. Progress is written to the server in real time and follows the player to any device.

Character creation — 0.10 SOL

Creating a character costs 0.10 SOL, paid on-chain at creation time. This fee serves three purposes:

• Real ownership — a created character is a durable asset tied to the player's wallet, not a throwaway save file.
• Economic integrity — a creation cost prevents bot farms from mass-producing free accounts and inflating the economy's output.
• Sustainability — creation fees flow to the project treasury, funding development, liquidity, and rewards.

The fee is enforced server-side, not by the interface: each purchase carries a unique on-chain memo bound to your wallet, the transaction is verified on Solana before anything is created, and characters can only be written by the server once that check passes. If a tab dies mid-purchase, the payment is recovered automatically on your next attempt — a paid fee is never lost. Presale slot holders (Section 4) create their character by consuming the voucher instead of paying the fee.

Roster and party slots

Every character you are not fielding is benched, not deleted. A character set aside at Base 40 is still Base 40 — with all gear, cards, and refines intact — when you rotate them back in. The character select screen doubles as party management: pick a benched character to field it, and the roster pages through all nine slots. With six job lines and nine roster slots, players can raise specialized parties for different maps, elements, and farming goals — including a dedicated Merchant for the marketplace (Section 12).

Idle RO opens in early access on August 8, 2026 at idlero.fun. Entry is invite-only through the early-access queue — and a limited character presale is live now.

The early-access queue — idlero.fun/early

Getting a queue number takes four steps, in order: connect a Solana wallet, redeem an invite code (codes only exist because we seeded them or another player earned them), connect X and reply to the pinned post, and join the Discord (verified server-side, for real). Finishing all four assigns your queue number and mints 10 invite codes of your own to share.

Community milestone rewards

Rewards are keyed to total registrations, not personal recruiting races. Every tier the community passes is granted to every registered account at launch — including players who joined before the tier unlocked:

Referral bonus — three levels deep: whoever invited you receives an extra 5% alongside every reward you earn, the person who invited them gets 3%, and one step further gets 1% — always added on top, never deducted from yours. Referrals only count once the invited player completes the queue, so inviting empty wallets is worth nothing. Registered players also earn a 6-day daily check-in ladder — potions, Field Manuals, refine ores, and slotted gear — before the game even opens.

Character presale — 6,000 slots · idlero.fun/presale

Before the world opens, 1,000 character slots per starter job — 6,000 in total, hard-capped and never reminted — are on sale at the standard creation price of 0.10 SOL. A presale slot is a job-bound, wallet-bound character voucher: when the game opens to you, creating a character of that job consumes the voucher instead of charging the creation fee, and you pick the name, look, and stat build at creation as normal.

Every character begins as a Novice and chooses one of six first jobs. Reaching Base 40 / Job 40 unlocks the job change to the line's second job — a major power spike with a new skill tree. Twelve playable jobs in all.

Swordman → Knight

Front-line damage and durability. Bash, Magnum Break, Two-Hand Mastery.

Mage → Wizard

Elemental burst and AoE. Fire Bolt, Storm Gust, Lord of Vermilion.

Archer → Hunter

Ranged sustained damage, high ASPD. Double Strafe, Blitz Beat.

Acolyte → Priest

Healing, buffs, holy damage. Heal, Blessing, Magnus Exorcismus.

Merchant → Blacksmith

The economy class. Discount buys cheaper, Overcharge sells higher, and Merchants sell natively on the player marketplace. Blacksmiths add weapon buffs like Adrenaline Rush and Weapon Perfection.

Thief → Assassin

Crit and burst melee. Double Attack, Steal, Envenom into katar-wielding Sonic Blow and Grimtooth.

Leveling

Characters gain Base EXP (character level, up to 99 → stat points) and Job EXP (job level, up to 50 → skill points) separately, exactly like the classic system. Stat points are spent across STR, AGI, VIT, INT, DEX, and LUK on the classic escalating cost curve, and every derived stat — HIT, FLEE, crit, perfect dodge, ASPD, HP, SP, regen — flows from the formulas in Section 2. The 68-skill pool sits on real prerequisite trees: passives, party buffs, AoE nukes, and the auto-cast AI that decides what is actually worth casting.

Skill and stat allocation can run fully automatic along your job's recommended build, or fully manual — your choice, per character.

Idle RO's core promise: your party grinds for you. Open the game and watch a real fight unfold — or close it and come back to progress.

Live combat

While the game is open, the simulation runs at full rate. Combat plays out honestly: melee characters close to weapon range and spread across the front rank instead of stacking on one target, archers fire arrows that actually travel, and casters hold the back line until their SP runs dry — then rest to recover it, but never mid-fight, because you cannot sit through a fight. Each party member has a rank (front or back) and a configurable behaviour — aggressive closes in and leads with damage, support holds position and prioritizes heals and buffs, balanced follows your skill priority list exactly as ordered. The cast AI even right-sizes nukes, dropping a spell to the lowest level that still kills the target — the way a real player picks Fire Bolt 3 for a Poring.

Offline progress

Up to 12 hours of offline farming accumulates while you are away, delivered as a "welcome back" summary on your next sign-in. Offline farming pays 60% of the live rate and never drops cards — the rarest and most valuable items in the game require the game to actually be open. Daily check-ins stay rewarding without punishing players who cannot play around the clock.

Automation you control

Auto-build allocates stats and skills along your job's build. Auto-equip actually tries the candidate item and reads the resulting derived stats — weighted by the current map's size and element profile — so a Hunter never "upgrades" from a bow into a dagger. Junk sells itself, potions restock themselves, and auto-refine pushes gear to whatever safety level you set. Auto-travel moves the party on when a map stops paying and picks the difficulty tier that pays best for your level. A four-slot belt puts consumables under your control: you choose what the party auto-drinks and auto-uses — potions, SP restores, EXP manuals — and it restocks itself. Every one of these systems can be switched off.

Death matters

Lose one party member and the survivors carry them — they revive after eight seconds. Lose the whole party and progress stops completely: no spawns, no regeneration, no farming, until you call for a revival. Party wipes are a real cost, and MVPs are genuinely lethal — the endgame bosses can delete an under-geared front-liner in seconds. Map and tier selection is a real risk-versus-reward decision, not a formality.

104 maps, every one an authentic location: the Prontera and Geffen fields, Payon Forest, the Labyrinth Forest, Orc territory, Payon Cave, Byalan Dungeon, the Pyramids, the Sphinx, Clock Tower, Amatsu Dungeon, and the full Glast Heim complex — sewers, churchyard, castle, abbey, prison, chivalry — up through all twelve floors of Thanatos Tower. Deep in the ladder wait eleven MVP bosses with real skill patterns: Eddga, Orc Hero, Orc Lord, Baphomet, Osiris, Amon Ra, Moonlight Flower, Pharaoh, Samurai Specter, Dark Lord, and Memory of Thanatos.

Eddga

Payon Forest

Orc Hero

Orc Village

Pharaoh

Sphinx

Samurai Specter

Amatsu

Dark Lord

Glast Heim

Thanatos

Thanatos Tower

Every map also has four difficulty tiers — Normal, Hard, Hell, and Nightmare. Each tier multiplies monster HP and damage and pays out proportionally more loot and cards, and only opens once you have cleared the tier below it and out-leveled the map by a margin. 104 maps become 416 stages, and the maps behind you remain economically relevant deep into the game.

Element and size are the puzzle layer: a Ghost-element MVP shrugs off Neutral attacks entirely, a spear behaves differently against large monsters than a dagger does, and gearing the party for the map is where player decisions beat raw numbers. Stronger equipment is the key that opens higher tiers — a party that gears up can farm content that pays multiples of the base tier. This is the engine of the game economy: better gear → harder maps → better loot → better gear.

Every monster killed drops loot. Loot becomes vZeny. vZeny can become $ZENY. That single pipeline is the backbone of Idle RO's play-to-earn design.

Grindparty farms maps

→

Lootitems, gear, cards

→

vZenyin-game currency

→

$ZENYon-chain token

Dual-currency design

Separating the two currencies is deliberate. A pure on-chain currency would make every potion purchase a blockchain transaction; a pure off-chain currency would give players nothing they truly own. The dual design keeps the game fast and the value real. The vZeny → $ZENY conversion runs through a controlled gateway with rate, fees, and daily limits designed to protect the token economy from farming shocks (parameters in Section 13).

Characters wear gear across 10 equipment slots — upper, middle, and lower headgear, armor, weapon, shield, garment, shoes, and two accessories — managed in a classic paper-doll equipment window with refine overlays and card indicators. Equipment drops from monsters, with better pieces gated behind harder maps and higher difficulty tiers. The Kafra Shop carries exactly the classic town-dealer stock — basic weapons and armor at authentic NPC prices, a vZeny sink for early gearing — while everything above dealer grade is drop-only, as it should be.

Gear is where the game's depth compounds. Weapons carry a weapon level (1–4) that determines both their refinement bonus per upgrade and how much damage variance high DEX can remove. Weapon type interacts with monster size through the full size-modifier table, and elemental weapons and armor plug into the element matrix, making gear choice a per-map puzzle rather than a simple item-level ladder.

• Progression driver — stronger equipment is the requirement for clearing higher-tier maps, which drop the best loot and cards.
• Card canvas — slotted equipment hosts cards (Section 10), multiplying the value of a good base item.
• Refinable — every piece can be refined with ores for flat power gains, at real risk (Section 11).
• Tradeable — equipment is a first-class marketplace asset (Section 12); a well-refined, well-carded item is a genuinely valuable good.

Cards are the rarest drops in Idle RO — and its deepest customization system. Monsters drop their own card at the classic rate of 1 in 10,000 (0.01%) — multiplied by difficulty tier, up to ×8 on Nightmare — and each card carries a real effect drawn from the classic card library: bonus damage against a race or size, elemental resistance, stat bonuses, skill damage amplifiers, SP leech on hit, extra drops from specific monsters, and more.

• Slotted into equipment — cards are compounded into slotted gear. The card's effect applies while the item is equipped, and card + item combinations define endgame builds.
• Online-only drops — cards never drop during offline farming. The rarest assets in the economy require live play, which anchors their scarcity.
• Build-defining — a card that boosts one skill, one element, or one enemy race can reshape an entire party composition around it.
• Market apex — low drop rates plus real power make cards the premium tier of the player marketplace.

A Card Album tracks collection completion, with set bonuses planned for collectors. The card pool grows with the monster roster — new monsters mean new cards, continuously feeding the collection game and the marketplace.

Refinement is Idle RO's high-stakes power system: spend ores and vZeny to push equipment from +0 toward +10 — safely at first, then at real risk of losing the item.

Ores

Refinement consumes ores that drop from monsters (and can be traded on the marketplace). Each equipment class uses a specific ore:

Equipment	Ore	Bonus per refine	Safe limit	vZeny cost / attempt
Weapon Level 1	Phracon	+2 ATK	+7	50
Weapon Level 2	Emveretarcon	+3 ATK	+6	200
Weapon Level 3	Oridecon	+5 ATK	+5	5,000
Weapon Level 4	Oridecon	+7 ATK	+4	20,000
Armor (all)	Elunium	+0.7 DEF	+4	2,000

Success rates

Up to the safe limit, refinement always succeeds. Past it, every attempt rolls the authentic pre-renewal rate table for its refine group — down to 10–20% at +10 — and a failed refine destroys the item (unless the item is innately unbreakable). Higher weapon levels have lower safe limits, so the strongest weapons are also the riskiest to push:

Over-refine bonus

Pushing past the safe limit is not only risk — it is reward. Over-refined weapons gain an additional random bonus per level above safe — up to +3/level on a Level 1 weapon, +5 on Level 2, +8 on Level 3, and +13 ATK per level on a Level 4 weapon — rolled on every attack. A +10 Level 4 weapon carries +70 flat ATK plus a 0–78 random bonus per swing: it hits harder and swings wider, exactly as veterans remember.

A player-to-player marketplace where loot, equipment, and cards are traded between players — the moment grinded goods become a real economy.

What can be traded

Who can sell: Merchants and the Market Pass

Selling on the marketplace is a privilege, not a default — a deliberate nod to the classic game, where the Merchant class ran the player economy through vending:

This makes the Merchant a real strategic choice for one of your nine roster slots: Discount and Overcharge already make it the best trader at NPCs, and the marketplace makes it your account's economic engine. The Market Pass gives everyone else a direct route in — and gives $ZENY another utility sink. Marketplace transactions carry a fee that flows to the treasury and burn mechanisms, making trading volume itself a stabilizing force for the token.

The figures in this section are under active design and will be finalized and published before the token generation event. Structure is presented here; numbers are marked TBD.

Token utility

• Earning — vZeny grinded in-game converts to $ZENY through the conversion gateway.
• Marketplace — trading fees and Market Pass purchases are $ZENY sinks.
• Progression unlocks — premium unlocks such as the 4th party slot.
• Future governance — community input on balance and economy parameters is under consideration.

Supply & allocation

Conversion gateway (vZeny → $ZENY)

Sinks and faucets

Idle RO's sustainability model is sink-first: the systems that remove value from the economy (refinement failure above all) are core gameplay that players want to engage with, not taxes bolted on afterward. An economy where the most exciting gamble in the game is also its biggest currency sink is an economy that can hold its value.

Phases ship sequentially and only when the previous layer is stable — the token does not launch before the game is fun, and the marketplace does not launch before the token is sound.

This whitepaper is a working draft for informational purposes only and does not constitute financial, legal, or investment advice, nor an offer or solicitation to purchase any token or security. All figures marked TBD are subject to change; game mechanics, rates, fees, and tokenomics may be adjusted before and after launch for balance and sustainability. $ZENY, when launched, is a utility token intended for use within the Idle RO ecosystem; its value may fluctuate and may go to zero. Participation in blockchain-based games involves risk — never spend more than you can afford to lose. Idle RO is an independent project; it is not affiliated with or endorsed by Gravity Co., Ltd. or the operators of Ragnarok Online.