840 LAB
84-0 Lab · NFL

Build a Running Back

QB RB WRsoon

Spin a team. Meet a running back. Keep exactly one of his ten attributes — take Derrick Henry's power, or gamble on better vision later? Ten spins, ten zones, then simulate your creation's 17-game season and chase Eric Dickerson's 2,105-yard record.

1Spin a player
2Keep one stat
3Fill all ten
4Sim the season

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🏈 Drafting your running back
Ten spins · one stat per player · no do-overs (okay, three passes).
OVERALL
WEEK 1 / 170 YDS · 0 TD

An 84-0 lab experiment · more games

About Build a Player: NFL running back

Spin ten random players, keep exactly one attribute from each, and build a custom NFL running back — then simulate his full season and chase Eric Dickerson's 2,105-yard record over a 17-game season.

Every attribute comes from a real player — take a legend's best trait or gamble on a better spin later. Three passes let you reject bad landings, and the finished build saves to global leaderboards with AI-generated card art.

Tips from the community

Full rules, records and strategy live in the Build a Player game guide.