Evaluating the Effectiveness of HUDs and Diegetic Ammo Displays in First-Person Shooter Games

We present an experiment comparing five ammunition display methods in first-person shooter (FPS) games. These included both diegetic (in-game) and heads-up display (HUD) options. HUD displays included a bar, icons, and a counter. Diegetic displays were displayed in-game beside the player's weapon. Two diegetic displays were evaluated: a number and bullets. We compared the performance offered by each ammunition display and player preference …