Cassiculus

Cassiculus

Craig Lawrence · 2024 · Walking Simulator, Immersive Sim, FPS, Cinematic, Free to Play

PC
Mostly Positive79% · 180
This game is free to play. Get it on Steam →

Screenshots

About Cassiculus

This terrifying first-person horror experience immerses the player into a world of isolation, fear, paranoia and claustrophobia as you make your way through the Oberon Cave. Throughout the game, you will experience atmospheric environments, disturbing audio and horrifying visuals.

Delve deep into the Oberon Cave
In a remote cave deep in the wilderness a team of amateur spelunkers set out to explore its mysterious depths. It's not long until their excitement turns into terror as they delve deeper into the darkness, they soon stumble upon a terrifying discovery.

Gameplay
Equipped with a trusty headtorch, you must explore the regions of the cave in search of your brother and his friends. Cassiculus features no combat. This experience focuses primarily on atmosphere and dread. There are multiple cutscenes to encounter, items to discover and other secrets along the way.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Players appreciate this free horror game for its atmospheric presentation, engaging story, and solid sound design, praising its visual quality and effective horror theme. However, the main criticism is that spider interactions rely too heavily on cutscenes rather than dynamic encounters, with players wishing for more interactive scares like spiders dropping from ceilings or requiring stealth gameplay to enhance the horror experience.

Recommended Jul 26, 2026
my friend who HATES spiders had this to say "Peak game I literally almost died from cardiac arrest, 10/100."
Recommended Jun 27, 2026
Really fun for what it is. Have you thought of making a games set in the Plane of Pandemonium from Planescape? This would be PERFECT for that.
Recommended May 4, 2026
I think it's a cool idea, and I did have fun with it. Problem is, the second I realised that all the interactions with the spiders were gonna be through cutscenes, I wasn't scared at all. There was so much potential for spiders to be crawling around on the ceiling to drop down on your head. That or have any of them chase you. Maybe have to hide and sneak around some. I'd love to see a game like this in the future, that isn't afraid to have these things involved. Cool game tho.
Recommended Feb 12, 2026
Beautiful game, beautiful graphic's, beautiful storyline. All for free. Truly amazing. It has a nice theme of horror, but you'll never get bored with it rising and keeping tension's at every moment, and combined with nice addition's like the house in the beggining, it is truly one of the best free games.
Recommended Jan 3, 2026
Cassiculus is a good atmospheric horror game and it's by Craig Lawrence the same person that made Golgotha, now it’s time for the story. A young man named Patrick has headed to the legendary Oberon Cave in search of his brother and his friends who disappeared a while ago, he doesn't know what happened to them, so he sets out to explore the cave and find them but soon he will realize that some caves should be left alone. Now then likes, the story is good, I can see some horror movie inspiration in it and unlike the previous game, this game gives a reason to why the main character is here, it does have a predictable ending though. The gameplay is good, it’s a bit better than the first game where you have a bit more stuff to do like smashing walls and stuff. The graphics are just as good as the first game with a good uses of color and designs that definitely make this cave feel like a real cave. The level is good it definitely has more to offer than their previous game, here we get a little forest, a little cabin and the cave is definitely unique in its structure and design. The characters are okay unlike the previous game this game has characters and while they're only there to se…
Recommended Dec 27, 2025
Australian caving sim. Jokes aside, this little story was nothing revolutionary, and some illogical solutions aside, it was very fun and engaging. The spider animations are juicy. They look so fuzzy too.

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