Five major gaming programs—Microsoft Xbox, Sony PlayStation, Valve Steam, Riot Games, and Epic Games—show wide differences in payout, scope, and intake pipelines, with Epic and Riot offering the highest potential rewards and Valve at the lower end.

Market context shows these programs pay large sums for top reports, with Epic and Riot frequently exceeding typical general-bounty payouts, and HackerOne dominating intake across four of the five programs to guide researchers toward consistency and exposure.

Key differences across programs include the intake platform (HackerOne vs. in-house), payout ceilings and optional boosts, explicit scope and exclusions (especially gameplay bugs vs. security vulnerabilities), and the presence of kernel-driver bounties (notably Riot) alongside a broad Xbox scope.

Valve Steam is the most conservative, with a hard $7,500 ceiling for critical bugs and a scope that explicitly excludes game bugs, glitches, and gameplay exploits from paid rewards.

Real-world implications show kernel-driver and account-authentication bugs yield the largest payouts, with eligibility tightly tied to precise scope and whether a report fits paid categories.

Migration and submission guidance: audit triage practices, choose an intake platform (HackerOne for most programs, MSRC for Microsoft), clearly define scope to avoid low-value reports, target premium kernel/anti-cheat areas for higher rewards, publish safe-harbor language, and periodically update payout bands to stay competitive.

Riot Games’ Vanguard kernel-driver bounty reaches up to $100,000 for kernel-level code execution, underscoring the premium placed on kernel-level exploits.

Sony PlayStation, operated on HackerOne, has raised payouts across severities with top rewards reaching up to $70,000, while maintaining a very low floor for some submissions.

Epic Games runs the largest disclosed total payouts—roughly $9.2 million since 2021—with high tops up to $100,000, and a broad scope that includes purchase-related bugs at $15,000 and above, including certain authentication bypass cases.