This game has been Greenlit by the Community!

The community has shown their interest in this game. Valve has reached out to this developer to start moving things toward release on Steam.

Greenlight is being retired. For more information on how to submit games to steam, refer to this blog post.
Genre: Action, Adventure
Platforms: PC, Linux
Languages: English
Mar 5, 2015 @ 7:00pm
Jul 8, 2016 @ 7:00pm
Recent Announcements View All (12)
Indiegogo campaign outcome
Release date: Cancelled


The world is ruled by a secret society called the Illuminati. For a long time they have been working on a global master plan to decimate the human population with the goal to create something they called "a new balance". Their latest project involves the mass production of antimatter in secret underground laboratories, which is used to create weapons of mass destruction.

You will step into the role of Alex, who's task is to prevent the production of antimatter by sabotaging the facilities and extract the source material: gold. Because these secret underground facilities are hidden from the outside world, you'll have to find them first. As they are spread all over the world, some locations like the Crimea (Black Sea) and Sinai (Egypt) are pretty challenging to visit.

While you're making your journey through areas that can be closed or hostile, you'll need to make certain decisions about using violence to achieve your goals. As in real life, aggression is noted and the area with its people (NPC's) you're in, will respond to that accordingly. As Alex, you'll not be able to only shoot your way through, but you'll also need to use stealth or diplomacy and solve problems without violence.

The organisation that is sending you off to these far locations will back you up financially and technically, but demand certain things in return. At some point you will wonder if all the things you do are as noble as one thought they would be.


Be a lone wolf or create and join factions on maps that represent real world locations. Take up arms, or be stealthy and sneaky in order to win the missions.

The main quests of the multiplayer missions mostly involve antimatter. This material is extremely explosive and will wipe out the whole map if it detonates due to shocking or damaging the antimatter containers (called traps). So one needs to be careful when handling a weapon or explosive near, or driving a truck loaded with these containers, because everybody loses when it all goes wrong.

Beside main quests will there be side quests that may unlock weapons or vehicles within the mission when achieved. It's not mandatory to take up any quest; you can explore and stay alive in an open world with or without joining or battling against other players.

This part will only developed with more then 50% funding! ►



There's really not that much linearity found in DeadlyMatter, you can roam free within the boundaries of the map.


We are doing all we can to replicate real world locations into DeadlyMatter as accurate as possible, but also need to keep the balance with the gameplay and our budget. It's very likely that if you enter a certain building in DeadlyMatter you'll be able to trace it back in virtual globe/map application like Google Earth or in real life. Our first map release will be a representation of 16km² of the Crimean Peninsula at the Black Sea, including; mountainous terrain, vast grasslands, forests, small to medium sized towns, industrial areas, highways and a sea port.

» TP & FP

DeadlyMatter can be played in third-person and first-person, with a mouse & keyboard or a controller.


Control not only health & stamina, but also blood level, blood sugar level, hydration, stomach content, oxygen saturation and endurance. You'll not only need to eat & drink to stay alive but also need to take care of what you're eating and drinking as food & drinks contain water, carbs, proteins and vitamins. A balanced diet results in a healthier and fitter avatar and certain food helps to heal faster after an injury.


Vehicles play an important role in DeadlyMatter. Not only to avoid walking long distances but also to move things from one place to another and use it as a movable stash. For now the only maintenance a car needs is fuel, but this could be extended when the demand is there. Driving a vehicle can be done with keyboard, mouse & keyboard or a controller.


In DeadlyMatter you can find and use all kinds of weapons. Not only firearms and melee weapons, but also for example poisons or hand crafted explosion devices. Simple weapon customisation will be available and can only be done at certain locations on the map.


Interacting with NPC's by using the dialogue system is an important part of the gameplay.


A simple crafting system will be implemented and vary from creating poisonous food to hand-crafted explosion devices.


You can loot buildings for food and weapons, but expect habitants defending their property. Or you can buy your necessities, and avoid getting shot at or be wanted by police.


A simple inventory system keeps your stuff at hand, though don't expect to be able to put a whole arsenal in your backpack. The use of stashes around the map or vehicles can overcome the limitations of the size of your carried inventory.

Note: What you see and hear here, represents a work in progress
and doesn't reflect the quality of the final product!
Popular Discussions View All (23)
Jun 10, 2015 @ 6:51pm
Mar 17, 2015 @ 9:46am
What about Mac OS X?
Aug 27, 2015 @ 4:54pm
Will there be a open beta or demo avaible
Micheal Your Man
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Nostalgic Dodo May 29 @ 7:15am 
Sorry to hear that. Though I think most people already have figured it out since no updates, not a word in a year. Though I wish you developers good luck with the future. ;)
DeadlyMatter®  [author] May 29 @ 6:42am 
Sorry to inform you that the development of DeadlyMatter has been cancelled.
LionheartsFB | 2K May 10, 2017 @ 3:21am 
Nostalgic Dodo May 8, 2017 @ 7:06am 
This game started out looking good and sounding good. But now I must admit... This is just not making any sense. And completely died out.
Seriously though? World ruled by Illuminati? I mean come on.
Eazy-E Mar 13, 2017 @ 9:31pm 
DeadlyMatter®  [author] Aug 24, 2016 @ 8:06pm 
@MisterMartiniYT We're working on a demo that is planned to be released around Q4 2016 / Q1 2017 with whole new content. We have our focus on creation and development so the online activities will be less then you have seen from us in the past months. Screenshots and footage will be released when the material is good enough to be presented.
Mr.Lu Aug 24, 2016 @ 7:01am 
Hey, guy! What about your game? Work in progress?
DeadlyMatter®  [author] Aug 11, 2016 @ 1:22am 
Read about DeadlyMatter's Indiegogo campaign outcome:
DeadlyMatter®  [author] Aug 10, 2016 @ 5:59am 
Hi autrax, thanks for your message. It's indeed an unpleasant surprisingly poor outcome. We were of course hopeful to reach the 100k goal but also realistic and choose for flexible funding. At first we going to evaluate tomorrow after we 're flushing the bitter taste with a drink or 2 tonight and come up with an "official" announcement. In any case are we not giving up. How, in what form and when we will announce this week after a serious assessment. Cheers, many thanks for your support :) and stay tuned!
autrax Aug 10, 2016 @ 1:42am 
I am sorry about the result of the funding campaign :-(. I do not understand, why only a few of us supported it. I still think it's a very promising game. I feel really sorry about the developers who put already a lot of work into this and i wonder, what the result means ... will you continue development ... ?