Steam Playtests
Operation: Harsh Doorstop

Open now · By request

Operation: Harsh Doorstop playtest

by Drakeling Labs

Operation: Harsh Doorstop is the ultimate, free to play, tactical shooter sandbox. Play singleplayer, multiplayer, or co-op modes and explore thousands of community-created maps, weapons, and vehicles via the Steam Workshop. Created by developers of the cancelled Project Reality 2 project.

It's free to ask. The developer chooses who gets in.

Access
By request
On playtest since
May 18, 2026
Released
Feb 15, 2023
Developer
Drakeling Labs
Platforms
Windows
Players
Co-op, Multiplayer, Online co-op, Online PvP, PvP, Single-player
Languages
English

How to join the Operation: Harsh Doorstop playtest

  1. Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
  2. Request access to the Operation: Harsh Doorstop playtest there. It's free and doesn't commit you to anything.
  3. The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.

New to playtests? How Steam playtests work

How AI is used

Our team utilizes AI in a variety of ways to improve the quality of our game. Here are a few examples of how our team incorporates AI into our development process: 1. We use AI to translate dialogue, subtitles, and (more infrequently) music into a variety of different languages spoken by players of our game. This allows more players from different regions to enjoy playing Operation: Harsh Doorstop in their own language, and helps us reach more players throughout the world. 2. We utilize machine learning to help train our NPC bots, giving non-player characters more realistic and adaptive behavior on the battlefield. 3. We utilize AI to assist with finding bugs and other issues in the game, which our developers can then diagnose and fix. We currently work with the RevoltGPT team to help us incorporate AI into our development workflows. If you're interested in learning more, you can visit their website at https://rvt.dev

The developer's own words, from Steam.

About Operation: Harsh Doorstop

What is Operation: Harsh Doorstop?

Operation: Harsh Doorstop is the ultimate tactical sandbox that merges intense military combat with limitless creative potential. Taking inspiration from both classic military simulation and mod-friendly sandbox games, OHD creates a unique experience where authentic warfare meets community-driven content creation. Whether you're engaging in tactical combat or exploring player-created modifications, every session offers something new.

Combined arms warfare in Operation: Harsh Doorstop.

Tactical Combat

Experience warfare where strategy and teamwork define victory. Coordinate with your squad, utilize vehicles effectively, and engage in intense firefights across diverse battlefields. The combat system rewards tactical thinking and team coordination, creating intense moments where every decision impacts the flow of battle.

Deployed M240B laying down suppressing fire.

Fortification & Supply Systems

Adapt to the evolving battlefield with our dynamic fortification system. Establish defensive positions, create supply lines, and reinforce strategic locations with sandbags and tactical barriers. Your team's ability to secure and fortify key positions can turn the tide of battle.

Operation: Harsh Doorstop's dynamic construction system.

Battlefield Communication

Success depends on clear communication and coordination. Our integrated voice system enables:

  • Local voice chat for close-quarters coordination
  • Squad communications for tactical planning
  • Command channels for strategic operations

Unlimited Modding Potential

At its heart, Operation: Harsh Doorstop is a platform for creativity. Through comprehensive mod support and Steam Workshop integration, creators can build:

  • Custom factions and equipment
  • New vehicles and weapons
  • Original game modes
  • Total conversion mods
  • Unique worlds and scenarios

American armored logistics convoy.

Key Features

  • Authentic tactical combat with infantry and vehicle warfare
  • Dynamic fortification system
  • Integrated team communication tools
  • Multiplayer, co-op, and single-player modes
  • Comprehensive Steam Workshop support
  • Expansive battlefields
  • Community-driven content creation
  • Regular game updates

Step into the future of tactical gaming. Operation: Harsh Doorstop combines authentic military action with unlimited creative possibilities, offering an experience that grows with its community.

From the game's Steam page.