Hashnine Studios emblem Hashnine Studios Unreal systems + tools

Unreal gameplay systems, multiplayer, and tools

Unreal co-dev for gameplay, multiplayer, and tools that have to ship.

Hashnine Studios is DarxDev's Unreal co-dev studio for gameplay systems, networking, runtime tools, and delivery support. Public references include Retail Royale, co-dev with Hypersonic Labs on Helix, co-dev engineering with RAA Studios on Cameraman: The Pilot Episode and Sinbad, plus public plugins on Fab.

Contact now View selected work

Direct studio inbox: hello@hashnine.studio

7.4k

Retail Royale SteamDB followers

124.9k

Peak Twitch viewers tracked by SteamDB

2 plugins

Public Fab tooling for runtime editing and host migration

Retail Royale screenshot showing a combat moment in the store
Helix screenshot showing driving in the city
Cameraman The Pilot Episode visual showing the project environment
Sinbad screenshot showing the platforming world and character
Runtime Level Arch-Editor visual
Robust Host Migration Framework visual
Hashnine Studios logo treatment
Co-dev references Hypersonic Labs + RAA Studios

Helix, Cameraman, and Sinbad add client-side Unreal engineering proof.

Delivery areas Gameplay / online / tools

Gameplay Ability System, replication, runtime editors, plugins, and launch support

About the studio

What clients actually hire for.

Fast scan version: gameplay systems, multiplayer, and tools with public proof.

Gameplay systems

  • Gameplay Ability System setup
  • Combat, interaction, inventory, and progression loops
  • Blueprint and C++ gameplay work

Multiplayer and online features

  • Replication, authority flow, and session edge cases
  • Player hosted sessions or dedicated servers
  • EOS and Steam features, voice, stats, cloud, and leaderboards

Tools and client delivery

  • Runtime level editors and property tools
  • Reusable plugins and internal dev utilities
  • Client delivery with RAA Studios and Hypersonic Labs

Project data

Proof clients can scan fast.

Enough numbers to show shipped scope without turning the page into a spreadsheet.

SteamDB 7,476 followers

SteamDB also shows 882 peak CCU and 124,969 peak Twitch viewers for Retail Royale.

Launch scale 5,428 total reviews

Retail Royale also shows 882 peak CCU, a 16-player feature set, voice chat, Steam stats, leaderboards, and cloud support on the public build.

Co-dev work Hypersonic Labs and RAA Studios

Public project references now cover Helix, Cameraman: The Pilot Episode, and Sinbad, which makes the site read like broader Unreal co-dev work instead of one title.

Fab tooling 2 public Unreal plugins

Runtime Level Arch-Editor and Robust Host Migration Framework keep the tooling side visible with productized Unreal work, demo videos, and gallery assets.

Fast fit check

If you need Unreal co-dev on gameplay, online systems, or tools, this is the relevant part.

Send scope, platforms, player count, and target timeline to hello@hashnine.studio.

Start a project

Portfolio

Selected co-dev and shipped work.

Four public reference points give clients a faster read on the work than one oversized case study.

Shipped multiplayer release Open on Steam
Retail Royale screenshot showing weapon play and retail arena scale Retail Royale screenshot showing a combat moment in the store Retail Royale screenshot showing players moving through a bright store environment

Retail Royale

Public launch reference for match scale, traction, and platform features. SteamDB currently lists 7,476 followers, 882 peak CCU, 124,969 peak Twitch viewers, and 5,428 total reviews.

  • 16-player Unreal multiplayer with melee combat, props, recycle and craft systems, and voice chat
  • SteamDB tech detection lists Unreal Engine and Epic Online Services SDK
  • Useful public proof for shipped gameplay, online features, and market traction
Shipped release SteamDB data Public press
PC Gamer Official trailer
Co-dev engineering Open Helix site
Helix official site screenshot Helix screenshot showing city driving Helix screenshot showing a casino environment

Helix / Hypersonic Labs

Co-dev engineering support with Hypersonic Labs on Helix, a multiplayer sandbox project with larger world spaces, vehicles, live systems, and Unreal-facing production needs.

  • Co-dev support in Unreal rather than a solo plugin or storefront page
  • Useful reference for systems work inside a larger multiplayer sandbox
  • Expands the client story beyond one shipped release and one studio partner
Co-dev engineering Hypersonic Labs Helix
Hypersonic Labs Helix project site
Co-dev engineering Open on Steam
Cameraman The Pilot Episode environment artwork Cameraman The Pilot Episode Steam page overview Cameraman The Pilot Episode Steam proof image

Cameraman: The Pilot Episode / RAA Studios

Co-dev engineering in Unreal with RAA Studios on a psychological horror project with puzzles, scene flow, and presentation-heavy delivery requirements.

  • Public Steam page gives clients a concrete project reference to inspect
  • Balances the portfolio with a second RAA Studios project in a different tone and genre
  • Shows co-dev engineering work where mood, interaction, and polish matter together
Co-dev engineering RAA Studios Steam page
RAA Studios Project details
Client work Open on Steam
Sinbad screenshot showing the platforming world and character Sinbad screenshot showing traversal and platforming Sinbad screenshot showing another environment from the Steam page

Sinbad / RAA Studios

Client delivery work with RAA Studios on a 3D sandbox platformer. The public Steam page gives an external reference while the delivery focus was gameplay framework, controller behavior, physics interactions, and environment state handling.

  • Client work on controllers, moment-to-moment systems, and environment state handling
  • Useful RAA Studios reference for collaboration outside horror and outside launch marketing
  • Keeps the portfolio focused on co-dev range instead of a second Retail Royale block
Client delivery RAA Studios Gameplay systems
RAA Studios on Steam Project details

Media

Project galleries and tool demos.

Keep the video layer short, then let the screenshots do the rest of the work.

Launch video / 30K views Watch on YouTube

Retail Royale early access release date announcement

30K views and still the cleanest short summary of the project.

Fab demo Watch on YouTube

Runtime Level Arch-Editor demo

Runtime editing workflow for Unreal projects that need in-game tooling.

Fab demo Watch on YouTube

Robust Host Migration Framework demo

Host migration demo for Unreal sessions where one player hosts the match.

Gameplay clip / 11K views Watch on YouTube

Retail Royale alpha gameplay

11K views. This is still the best longer gameplay clip for combat spacing, traversal, and store layout.

Steam screenshot slider Open on Steam

Retail Royale screenshot gallery

Real screenshots pulled from the live Steam listing to make the public launch feel visual, not abstract.

Retail Royale screenshot showing a fight in a retail aisle
Aisle fights and dense store-floor combat.
Retail Royale screenshot showing players moving through a bright store environment
Readable multiplayer spaces with stylized color and scale.
Retail Royale screenshot showing chaos around shelving and product displays
The core hook lands fast because the environment is instantly memorable.
Retail Royale screenshot showing traversal through the store
Movement, line of sight, and sightlines all read well in motion.
Retail Royale screenshot showing a combat moment in the store
Storefront shots like these help explain why the concept travelled in press.
Retail Royale screenshot showing weapon play and retail arena scale
Direct storefront proof that buyers and partners can inspect themselves.
Steam screenshots Retail Royale Public storefront
Hypersonic Labs project Open Helix site

Helix screenshot gallery

Official Helix visuals that help the Hypersonic Labs co-dev story feel concrete instead of name-dropping only.

Helix screenshot showing driving in a city environment
Vehicle and city gameplay that reads very differently from the retail arena project.
Helix screenshot showing a casino interior
Interior gameplay and social spaces help show wider world-system range.
Helix screenshot showing an interior room
Environment fidelity and project tone make the client mix look broader at a glance.
Helix official site screenshot
The official site gives a public anchor for the project and its visual direction.
Helix Hypersonic Labs Official project imagery
RAA Studios project Open on Steam

Cameraman: The Pilot Episode gallery

Public visuals from the Steam page and project art, reframed so the RAA Studios co-dev engineering credit has real visual context.

Cameraman The Pilot Episode gallery image showing an environment scene
Atmosphere-heavy Unreal work where presentation and scene flow matter as much as implementation.
Cameraman The Pilot Episode gallery image showing the Steam page overview
The public Steam page gives prospects a direct outside reference for the project.
Cameraman The Pilot Episode gallery image showing project visuals and Steam proof
Useful proof that the project is client work with a live public surface, not just internal material.
Cameraman The Pilot Episode gallery image showing title art and environment work
Brings the mood, title treatment, and gameplay-facing imagery together in one panel.
Cameraman RAA Studios Steam page
RAA Studios project Open on Steam

Sinbad screenshot gallery

Visual proof for the RAA Studios collaboration story, using the live Steam page imagery for the project.

Sinbad screenshot showing the platforming world and character
Charming 3D platforming visuals tied to the RAA Studios work.
Sinbad screenshot showing a colorful environment
Bright world-building that broadens the studio portfolio beyond one genre.
Sinbad screenshot showing traversal and platforming
Good variety for prospects who want to see range instead of repetition.
Sinbad screenshot showing a stylized gameplay scene
The collaboration story becomes more credible when the work is visible.
Sinbad screenshot showing another environment from the Steam page
More visual depth for the RAA Studios section of the founder story.
Sinbad RAA Studios Steam page
Plugin visuals Open on Fab

Runtime Level Arch-Editor gallery

High resolution product visuals paired with the Fab listing and demo video so the tooling work reads clearly at full size.

Runtime Level Arch-Editor overview image showing the in editor workflow
Runtime editing workflow with layout controls and transform handling.
Runtime Level Arch-Editor feature image highlighting workflow depth
Useful when a team needs in game tooling, fast iteration, and cleaner content pipelines.
Runtime Level Arch-Editor gallery image showing a focused workflow view and UI detail
High-resolution UI detail makes the tool feel productized instead of thrown in as a side note.
Runtime Level Arch-Editor gallery image showing alternate workflow panels
Extra frames help buyers inspect viewport workflow, selection flow, and panel layout.
Demo video Fab listing
Plugin visuals Open on Fab

Robust Host Migration Framework gallery

High resolution multiplayer plugin visuals paired with the Fab page and demo so the network tooling work does not rely on tiny screenshots.

Robust Host Migration Framework overview image showing host migration workflow
Host migration flow and session recovery tooling for Unreal multiplayer.
Robust Host Migration Framework image showing recovery and handoff flow
Focused on recovery, state handoff, and keeping sessions playable instead of dropping the whole lobby.
Robust Host Migration Framework gallery image showing additional workflow detail
More gallery depth lets technical leads inspect the system instead of guessing from one hero shot.
Robust Host Migration Framework gallery image showing recovery flow panels
Session handoff, recovery flow, and Unreal-facing setup stay visible across multiple frames.
Demo video Fab listing

Public references

Coverage and proof, kept visual.

A few real pages do more work here than a lot of extra copy.

PC Gamer image for Retail Royale coverage
PC Gamer Read source

Games media pickup

xQc mention. Useful because it ties the project to outside attention fast.

GamesPress article about Retail Royale winning a fan favorite vote
GamesPress / GDWC Read source

Vote win and public community signal

Fan favorite win. A dated public marker that the project travelled beyond the studio page.

Alpha Beta Gamer article about Retail Royale
Alpha Beta Gamer Read source

Early discovery coverage

Concept clarity. Good proof that the hook was easy for games media to pick up early.

Player.it article screenshot for Retail Royale coverage
Player.it Read source

International press reference

Steam traction. Another external article connecting the project to wider visibility.

Enough proof

Retail Royale shows launch scale. Helix, Cameraman, and Sinbad show co-dev range. Fab shows tooling.

If your team needs gameplay, online systems, or tools, the next step is a scoped email.

Contact Hashnine

Technical delivery

What the work usually includes.

Unreal work that has to ship and still be easy for a team to maintain after handoff.

Gameplay systems

GAS, combat, progression, interaction

Gameplay Ability System setup, Blueprint/C++ gameplay work, combat flow, interaction, inventory, progression, and state management.

Multiplayer

Replication, session flow, online features

Player hosted or dedicated server support, replication authority, reconnect edge cases, EOS/Steam sessions, voice, stats, cloud saves, and host migration.

Tools and plugins

Runtime editors, plugins, internal utilities

  • Runtime level editing and custom property serialization
  • Gameplay plugins for Blueprint and C++ projects
  • QA/debug helpers and workflow tooling for dev teams
  • Fab ready packaging, demos, and documentation when needed

Retail Royale covers launch scale. Helix, Cameraman, and Sinbad cover co-dev. Fab covers tools.

That mix is a cleaner picture of the Unreal work on offer here.

Start a conversation

Need Unreal gameplay, networking, tools, or engineering support?

Send scope, platforms, target player counts, and whether the work is gameplay, online features, tools, or launch support. The draft goes to hello@hashnine.studio.

Best for Gameplay systems, multiplayer, plugins, client work, and launch support
Availability Cyprus-based, remote worldwide

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