"Fair play" in the various Ragnarok games refers to a strict adherence to official rules, emphasizing no cheating, no botting, and respectful conduct. Violations can result in severe penalties, including temporary suspensions and permanent bans. 

Core Fair Play Rules & Guidelines
The specific rules vary slightly by game version (e.g., Ragnarok Online, Ragnarok Origin, Ragnarok X: Next Generation), but generally include the following principles:

Prohibited Technical Violations
No Third-Party Programs/Software: The use of bots, auto-clickers, packet injection, or any unauthorized software to gain an unfair advantage is strictly prohibited.
No Exploiting Bugs: Intentionally using in-game bugs or loopholes that are not operating under normal conditions to gain an advantage is forbidden. Players are often encouraged to report bugs proactively to the event committee.
No Account Sharing/Selling: This is generally not allowed, as shared accounts can be punished together if one breaks the rules.
No Item/Zeny Duplication or Real-Money Trading (RMT): Engaging in the duplication of in-game currency (Zeny) or items, or buying from gold-selling websites is strictly prohibited. 

Prohibited In-Game Conduct
No Harassment or Inappropriate Language: Using offensive, insulting, defamatory, obscene, or discriminatory language in-game, on social media, or during events is prohibited.
No Impersonation: Players must not impersonate other users, guilds, or staff members.
No Kill Stealing or Mob Training (Intentional): Intentionally stealing kills from other players or leading large groups of monsters (mob training) to another user's location without permission is generally against the rules.
No Unjustified Forfeits (in Tournaments): Teams in competitive events are expected to compete with honor and pride; unjustified forfeits can lead to the revocation of all event rewards and suspension penalties. 

Penalties for Violations
Game operators have a zero-tolerance policy for cheating and rule violations. Penalties vary based on the severity and frequency of the infraction: 
Warnings: Initial offenses may result in an email warning.
Temporary Suspensions/Bans: Violators may face 3-day, 7-day, 30-day, or longer account suspensions.
Permanent Bans: Severe cases, repeat offenses, or the use of third-party programs often lead to permanent account or IP bans.
Forfeiture of Rewards: Players or guilds found cheating during events may have all their prizes and titles revoked.