#10
Boltgun sits at ten because it is the most specific pick on this list. If you are not drawn to the Warhammer setting and retro visual style, there are better entries above it for you. But if that combination sounds appealing, the game earns its spot cleanly. The boltgun itself has a weight and audio punch that sells the fantasy immediately, and the enemy encounters stay readable without demanding the kind of spatial awareness DOOM Eternal requires. I tried it during a travel session and it was the kind of game that disappears twenty minutes at a time without you noticing. For a boomer shooter on handheld, that is exactly what you want.