If 古剑奇谭(GuJian) generated the same gross revenue on the Epic Games Store, 上海烛龙信息科技有限公司, Aurogon Shanghai would keep approximately $1,616,525 - that's $426,107 more than on Steam.
At this revenue level, Epic's concrete platform fee would be $84,072. Epic charges 0% on the first $1 million in annual per-app revenue and then 12% on the remaining amount. On GOG (30% cut), the developer would earn approximately $1,190,417.
Note: This is a hypothetical comparison. Actual sales volumes differ significantly between platforms, and Steam's larger user base typically drives substantially higher sales.