Quintessence SystemsSoftware & Games
Quintessence Systems (SMC-Private) Ltd

We build software
and online games.

Quintessence Systems is a software and games company from Pakistan. We design, build and run online services end to end, from game clients and backend infrastructure to player accounts and payments. Our current product is Sector Siege, a free-to-play online shooter for Windows PC.

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About us

Engineering-led, player-focused

We are a small team that handles every layer of a live product ourselves. That means we can ship fixes quickly, keep services stable and support our players directly.

Game development

Gameplay, client builds, launchers and updates for online multiplayer games on Windows PC.

Software & backend systems

Web platforms, APIs, account systems, game servers and the infrastructure that keeps them online.

Live operations

Monitoring, anti-cheat, secure payments, player support and regular content updates.

Products

Sector Siege

Our flagship title, developed and operated by Quintessence Systems.

Sector Siege logo
  • Online FPS
  • Windows PC
  • Free to play

Sector Siege is a free online shooter built around short, intense squad battles in Redhaven, an abandoned harbour city. Players choose from more than 60 customisable firearms, unlockable perks and specialist roles across 25 maps and several team modes, and rank up through contracts, missions, clans and rating races.

  • PlatformWindows PC (downloadable client, about 1 GB)
  • PriceFree to play. Optional in-game currency packages (Gold and Silver).
  • PaymentsProcessed by Tebex Limited, our authorised reseller and merchant of record
  • Support[email protected]
Visit sectorsiege.com Create a free account
Terms of Service Privacy Policy Refund Policy User Agreement
Company information

Who we are

Legal name
Quintessence Systems (SMC-Private) Ltd
Company type
Single Member Company (Private Limited), Pakistan
Registration number
0358486
Registered address
Apt. 301, 3rd Floor, Sheraz Center, Watkay, Swat, Khyber Pakhtunkhwa, Pakistan
E-mail
[email protected]
Products
Sector Siege (www.sectorsiege.com)
Contact

Get in touch

For business enquiries, partnerships or questions about our company, e-mail us. We usually reply within a few business days.

[email protected]

Sector Siege players

For help with your account, a purchase or a refund, e-mail [email protected] from the address linked to your game account and include your order number if it is about a payment. You can also reach the team and community on Discord.

Refunds follow the Sector Siege Refund Policy.