https://www.pcgamer.com/blood-bowl-death-zone-is-free-to-play-this-weekend/

Blood Bowl: Death Zone is a real-time, 1v1 take on the Blood Bowl fantasy football series in which small teams square off in five-minute, almost-no-holds-barred contests. It went into Early Access in July with eight teams, eight unique Star Players, and a $10 price tag. 

(The Steam listing describes the Death Zone challenge as a "popular pre-game show" at Blood Bowl matches, and so I guess it's priced accordingly compared to the full game.)