Schedule I, a solo-developed drug manufacturing and dealing simulator, unexpectedly became a top Steam seller in 2025. Its success stems from a combination of factors: a compelling crime theme filling a market gap left by the delayed Grand Theft Auto 6, a blend of simulation and action gameplay appealing to diverse audiences, and a fortuitous viral spread via streamers and TikTok. A well-received demo further boosted pre-release hype. While its ranking has slightly decreased, consistent updates are planned to maintain its long-term success.