You don’t need fancy graphics or AAA sound design to feel fear crawl under your skin. These four creepy browser games prove that minimalism, mystery, and good old psychological horror can still leave you staring at your screen long after the tab is closed.

1. Last Seen Online

A forgotten laptop. An inbox frozen in time. You take on the role of someone digging into the digital traces of a girl who suddenly vanished. At first, it feels like innocent digital archaeology—but then the photos begin to shift. The tone of her final messages starts to change. What starts as casual clicking turns into an investigation where the trail begins to feel dangerously alive. It doesn’t scream at you. It breathes down your neck.

2. The Survey

A room. A screen. A survey. The questions seem harmless—until they’re not.
"Do you feel safe here?"
"Would anyone miss you if you disappeared?"
Each answer reshapes your surroundings. The lights flicker. The walls creak. There’s something behind you, but you can't look away from the screen. The Survey isn’t a game you play. It’s a test you take. One that slowly dissects you.

3. Ghastly Asylum

You wake up alone in the bowels of an abandoned asylum. No one explains why you're there. No one is coming to help. You explore dim corridors, unlock forgotten rooms, and encounter voices that may or may not be real. There are puzzles, yes—but the real horror comes from the silence, the flickers, the feeling that the walls are breathing. Every room feels like it remembers something you don’t. Something it wants you to see again.

4. Seamongrel

An aquarium date gone wrong. The lights cut out. The only way forward is through waterlogged hallways filled with strange sea creatures that seem just a little too… human. You play as Theo or Kim, trying to reunite and escape, but the creatures aren’t your only worry. The place itself feels alive—pulling you deeper with each step. You’re never sure what’s real, what’s dream, and what’s already drowned.

Why These Horror Games Work

They're subtle. They’re slow. They don’t need to jump out at you to get under your skin. Each of these titles taps into a different kind of fear—abandonment, surveillance, confinement, the unknown. And because you play them in your browser, there's no buffer. No full screen to hide behind. Just you, a mouse, and the creeping thought that maybe you should stop... but you won’t.