 A study of older Veterans 60-85 years old who have 1 a history of repetitive mild TBI or at least one moderate TBI and 2 subjective cognitive complaints. Participants will be randomized to one of three conditions for 4 weeks: Project:Evolution EVO multitask video game, EVO words video game, or an assessment only control condition. Participants will complete assessment visits at baseline, post-intervention 1 month after baseline, and 3 months post-intervention 4 months after baseline. 