关于此游戏

Open Close Door is a story-driven retro FPS in pixel art style that takes you back to the golden age of 90s shooters — but with its own narrative, dark atmosphere, and relentless pace.

You play as a secret agent who receives an urgent call from Doctor Hemlock.
From the depths of an abandoned laboratory comes a chilling message: your wife might still be alive.
But the truth is darker than you can imagine.

Descend into a complex filled with mutants, inhuman experiments, and deadly traps.
Fight your way through 10 unique levels, each featuring comic-style cutscenes, interactions, and shocking revelations.

The game combines fast-paced action with story moments — shoot, explore, and survive to uncover what’s hidden behind the locked doors.

🧩 Features

• Fast and brutal retro FPS action

• Atmospheric story with a dark mystery

• Mutants, traps, and twisted experiments

• Stylized comic-book cutscenes

• A mix of action, exploration, and survival

🎮 About the Game

• Genre & Style: Boomer Shooter, retro FPS, 90s-inspired pixel art action

• Story: Play as an agent uncovering the truth — your wife may still be alive, but the lab hides something much worse

• Gameplay: Unique levels, comic-style cutscenes, varied weapons, fast pacing, and survival mechanics

• What makes it special: A moody atmosphere, a blend of story and action, and interactions with the environment and characters

💬 Developer’s Note

Open Close Door is an indie project I’m creating alone in my free time — purely out of love for classic retro FPS games.
Don’t expect a massive AAA production, but if you appreciate the authentic atmosphere of 90s shooters and handcrafted content, I believe this game will grab you.
Every wishlist and bit of support means a lot to me. 🙏

AI 生成内容披露

开发者对其游戏如何使用 AI 生成内容的描述如下：

Some cutscene images were created using AI-assisted tools. The in-game text-to-speech feature uses a standard voice synthesis tool. No real-time AI interaction or generative systems are used during gameplay.

成人内容描述

开发者对内容描述如下：

This game contains scenes of mild violence and blood, as well as dark and tense atmosphere that may be disturbing for some players. There are no sexual themes or extreme gore.