Devlog｜Beta Development Notes for a Browser MMORPG

Mumu Studio

Devlog

Development notes for Endless Adventure Online, from Beta progress to system design and the road toward beta. We focus on systems that are already visible or confirmed, rather than turning uncertain plans into promises.

Beta Notes 2026-07-07 7 min read

The Complete World Boss Guide: Schedule, Rewards and How to Join

All five world bosses are live in Endless Adventure Online: Devourer of Gods · Bone, Night Devourer · Xizor, Calamity Empress · Daphne, Calamity Lord · Lawrence and Void Monarch · Athazon. The full spawn schedule (UTC+8), HP tiers, contribution rewards, chests and the token shop — plus how anyone can join, at any level.

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Beta Notes 2026-07-07 6 min read

One Month of Beta: World Bosses, Rift Realms, Monster Cards and More

A recap of the first month of the Endless Adventure Online Beta: the five-boss world-boss schedule, 26 high-difficulty Rift Realm maps, the monster card album and card dealer, the personal warehouse and storage overhaul, market search, world-map auto-travel and more quality-of-life updates.

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Beta Notes 2026-06-12 4 min read

The Beta Is Live: No Download, No Invite Code

The Endless Adventure Online Beta is officially open: play at play.endless.tw right in your browser, with the full Lv 1–350 ladder. How to get in, login notes, wipe rules, purchase protection and where to report issues.

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Beta Notes 2026-06-11 6 min read

How to Beat Your First Mechanics Boss: Azure Wisp Grove Guide

A full guide to Azure Wisp Grove, the first boss dungeon in Endless Adventure Online: the 60%/30% azure burn phases, dodging line attacks, party setup, and the 16-piece Azure Grove set drops.

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System Design 2026-06-11 5 min read

How Equipment Potential Works: From Rare to Legendary Lines

A breakdown of the equipment potential system in Endless Adventure Online: 1 line on rare, 2 on epic, 3 on legendary — and only legendaries can roll an S-rank line. Identification, re-rolling and when to keep what.

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System Design 2026-06-11 7 min read

Best Starter Class in a 2D Pixel MMORPG: Picking Your First Job

Swordsman, Rogue, Mage or Priest? A practical guide to choosing your first class in Endless Adventure Online, covering solo power, party roles and all twelve advancement branches.

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Devlog 2026-05-25 6 min read

Devlog Day -1: From a Solo Demo to a Near-Beta MMORPG

A development recap of how Endless Adventure Online grew from a Claude Design solo prototype into a near-beta 2D browser MMORPG, including levels 1–350, five job advancements, twelve class branches, collections, gathering, crafting, weapon potentials, dungeons and WebSocket improvements.

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Devlog 2026-05-22 4 min read

Why We Built a No-Download Browser MMORPG

Why Endless Adventure Online is a no-download browser MMORPG: low-friction Beta access, PC/Mac browser first, with four classes, equipment, talents and life skills.

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Official Service Live

The Official Server Is Live

No download and no invite code — open play.endless.tw in your browser and start playing. Patch notes, events and community chat live on the official Discord.

Play Now → Join Discord →