https://jayjaygamesstudios.itch.io/nightmare-onslaught

Nightmare Onslaught (Demo Version) is available to play for free.

Plot: One night, you’re fast asleep. You are having a dream, a bad dream! You are all alone on a haunted island surrounded by various creatures; seeking to find you and eat you ALIVE!! Luckily in your dream, you’re equipped with guns to defend yourself against waves of these monsters. – Until your nightmare is over.

Source: itch.io