About RO BuildLab

Turn build statistics into progress you can understand

RO BuildLab is an independent Ragnarok Origin Classic player research site maintained by Scott. It brings together attack and defense statistics, feather configurations and growth records so adventurers can understand their builds, make changes in the game, and record or share their progress.

Tools in the lab

• Build research and My Builds: save character data and growth records.
• Hall of Heroes: compare builds within classes and guilds.
• Feather simulator: configure ten statues, review set and feather bonuses, check resource requirements and compare plans.
• Defense calculator, stat and skill allocation tools, and class guides: understand your numbers and explore builds shared by players.

A simple way to get started

1. Enter your character’s attack and defense values. You can create a build without signing in.
2. Check the median, sample size and update time for your class or class group, then compare your values.
3. Try configurations in the defense calculator and feather simulator, and refer to class guides.
4. After making changes in the game, update your build. Sign in to save builds to your account and follow your growth records.

Statistics reflect builds submitted by players. Check the server, data age and sample size for each value when comparing.

Supported game, data and versions

Ragnarok Origin Classic · Asia service. Reference data uses the Taiwan client. Check each guide’s version against your server’s patch. Changing the site language translates text; it does not switch regional game data.

Build records are submitted by players, and guides retain their authors and applicable versions. Feather names, resource pools and configurations use data confirmed by this site. System presets are reference plans selected by the operator and can be edited after applying them. Game updates and data differences may affect results. Report discrepancies with screenshots and version details.

RO BuildLab is an independent player research site with no official affiliation or endorsement.

Contact, support and partnerships

For site issues, account or privacy requests, copyright reports or partnerships, contact Scott through the email or LINE links below.

Support is entirely voluntary and does not affect rankings or account permissions. Partnerships should be clearly identified. The site does not sell changes to player data or rankings.