basketball game, NBA 2K21, server status, online multiplayer, realistic player models, dynamic lighting, indoor basketball court, scoreboard, high-resolution textures, sports action, dribbling, shooting, dunking, cheering crowd, competitive atmosphere, real-time gameplay, network connectivity, server maintenance, digital scoreboard, high-definition, 3/4 angle view, focused intensity, sweat detail, athletic wear, team jerseys, rubber basketball texture, polished wooden floor, energetic, fast-paced.