Space trading game like Elite with combat action like Galaga and Space Invaders
Scum of the Universe
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Scum of the Universe is a space trading game that combines two genres: arcade and strategy. On one side, it's a classic vertical-scrolling space shooter game. On the other side, it is an adventure and strategy. You should choose whether you'll be an independent space trader, firearms smuggler, fierce freedom-fighter or something in between. Following the main storyline, you go through the galaxy from one planet to another. Space travel requires fuel, so you need to keep earning money to buy it. You can also buy various upgrades for your spaceship and weapons that affect the arcade part of the game. The storyline itself is not linear. There are also some points where you'll need to make decisions that will determine your destiny.


About the game world

For thousands of years, people of planet Xen have colonized the planets in their galaxy. As time went by, many colonies grew unhappy about their status, as everything was controlled by Xen. Some of them organized military units and declared independence. You can see the status of each planet by "Rebel Sentiment" indicator. Planets with RS higher than 50% are ruled by the Rebel government, and Rebel laws apply.

Trading firearms is legal on planets ruled by Rebels, as they need as much firepower as they can get. On the other hand, Empire forbid all the trading with firearms and other ground weaponry as they wish to maintain their military advantage. One of the ways to make a lot of money is to buy cheap guns at Empire planets and sell them for a lot of money on Rebel planets where demand is extremely high. But be careful as you'll need to fight Empire fleet once they find out you're a smuggler.

Beside the raging war between Xen Empire and the rebels there is increased activity of alien species, who destroy human ships. The stronger alien activity, the more waves of alien ships you'll need to defeat in each planet's outer orbit. Some of the aliens you destroy may drop artifacts (big blue ones) which you can sell at any space station for 20credits a piece.

The story

One day, while wandering on abandoned planet you found a beautiful crystal. You took it hoping to sell it for a good price. On the way, you were attacked by two pirates who looted your ship and took the crystal. You barely managed to stay alive.

As the game starts, your escape pod reaches a nearby planet. You learn that those pirates come from planet Torres and decide to go after them. You have 2000 credits on your bank account.

It's time to begin your quest throughout the galaxy. You start at planet Xen, and first mission is to reach planet Torres. Both current and target planet are marked with pulsing white cross on the galaxy map. The small green circle in galaxy map represents the area you can reach with current amount of fuel. You can buy more fuel at "Trade&Cargo" screen. You ship's tank has capacity for 40 units of fuel, and that's the most you can travel within a single "hyperspace jump". If you loose all fuel and don't have any money, you're stuck on the planet until you earn enough money to buy fuel to leave it. To earn money, simply Launch off in the planet's orbit and shoot some aliens to collect alien artifacts you can sell when you return to space station.

Playing the game

The game is divided into two parts. First is the planetary screen and second is the arcade shooter part of the game. Planetary screen has the following sections:

1. Galaxy map

You can see your current location and green circle shows the area you can reach with amount of fuel you have at the moment. You can set the next planet for hyperspace jump by clicking the left mouse button on some of the planets within that green circle. You can extend the circle by buying more fuel on "Cargo&Trade" screen.

2. Cargo & Trade

Here you can buy and sell goods and equipment. The current amount of money is shown in bottom left part of the screen. In space economy, the currency is called "Credits". The goods are shown in upper part of the screen, while weapons and equipment are in the lower part. Some of the goods are illegal to trade, so make sure you read the item description at the bottom of the list.

The cargo hull of your ship has limited capacity for 20 tons of any goods, so make sure you combine them in such way to maximize the profit. Some weapons are permanent, while others are lost when fired. Permanent weapons have unlimited ammo.

Goods Minimum tech. level Note
Food 1 Cheap on low TL planets
Electronics 5 Cheap on high TL planets
Alien artifacts N/A Collect when you shoot aliens, sell on any planet
Jewelry 3 Random prices
Firearms 4 Trading illegal on Empire planets
Slaves 1 Trading illegal on Rebel planets
Narcotics 3 Trading illegal everywhere, cheap on low TL planets
Weapons and equipment Minimum tech. level Note
Proton enhancer 6 Enhances primary and secondary weapon power
Wave emitter 8 Tertiary weapon - use middle mouse button
Space grenade 8 Destroys multiple enemies - default key D
Stinger rocket 1 Ammo for rocket launcher - default key F
Shield upgrade 7 Allows your ship to have 200 shield energy
Fuel 1 Needed for hyperspace travel between planets

3. Quest

Quest section shows the ship log (planets you visit and important events that happen to you) and the latest news about ongoing war between the rebels and empire. As time goes by, some planets change their government (rebel/empire) so be careful if you're considered hostile by some of them. The change affects prices of some illegal goods as well.

Planets with more than 80% of Rebel or Empire inclined citizens are considered planets of stable government. On them, the economy and science prospers and occasionally the tech. level increases. Planets where government is overturned sometimes have their tech. level reduced due to civil war. All these changes are recorded in the quest log too.

While docked in the space station, this screen also features an option to save the game. In order to prevent save-and-retry tactics, each saving costs 1000 credits.

4. Launch

You exit the space station and enter the planet's outer orbit. This is where space shooter part of the game starts. You can fly around, shoot some aliens and return back to space station, or use the hyperspace jump to travel to another planet. If you wish to set or change the hyperspace jump target, just press ESC key, and go to galaxy map.

While in outer orbit, you will encounter various enemies. Aliens shoot at you no matter what. The number of waves of aliens depends on alien activity in that area. Rebels and empire fleet shoot at you depending on your empire/rebel status, which can be: clean, fugitive, terrorist. You are considered fugitive (criminal) when you're caught trading illegal goods. Later in the game you are allowed to make some choices, which will lead to you getting a terrorist status by one of the sides in conflict. For example, it may happen if you join the rebels in their attempt to destroy the Empire Armada.

Outer space

In the top left part of the screen you can see the score and number of kills you made. Number of kills determine your military reputation. Once you get high reputation, some interesting quests could be offered to you.

Reputation Kills
Harmless 0
Poor 500
Average 1000
Competent 2500
Dangerous 4500
Deadly 6500
Elite 9000

The number of incoming waves of aliens, empire fleet and rebel ships is shown in the top left corner of the screen. Once all counters reach zero, you can dock to space station.

Bottom left part of the screen shows levels of shield and energy your ship has. Energy is conserved while there is any shield left. When shield is lost, enemy bullets can penetrate your ship and destroy some of the ship upgrades you have bought.

Bottom right corner shows weapon upgrades and number of Space Grenades and Stinger Rockets you have.

While shooting at aliens, so may drop artifacts. When you collect them, another power-up shows up: either Energy or Shield, and you have to collect it. You can have maximum 100 shield or energy. When you buy Shield Upgrade, you can have up to 200 shield points.

Tips and Tricks

1. Trading

If you wish to avoid fighting with a lot of Empire or Rebel ships, you should not trade with illegal goods. The exception is end of chapter two where Rebels agree to forgive all your previous record if you join them, so trading slaves can give you a lot credits. There are three kinds of legal goods: food, electronics and jewelry. Food is cheap on planets with low technology level and expensive on high tech. ones. Electronics is other way around. So, make sure you travel among differing planets (ideally it would be TL9 -> TL1 -> TL9 -> TL1 ->... etc.). Jewelry has a random price in the range between 200 and 600. If you see jewelry for less than 300 it is usually a very good bargain.

Illegal goods make bigger profit, but are more risky as you need to fight more enemies to go through. Narcotics are cheap on low-tech planets and illegal everywhere. In Empire, the slavery is still legal. On Rebel planets, trading firearms is legal as they need it to support their struggle against heavy-armed Empire forces. Plan your route trough planets of different government if you wish to do the smuggling business.

Once you decide the next target for your hyperspace jump, it is wise to sell all the extra fuel you don't need and invest it into some goods.

2. Combat

Each weapon has its use. Proton Enhancer is first choice to many. It makes your primary and secondary weapons (vertical and spread fire) two times stronger. Firing more powerful ammo requires more energy, so the rate is a little bit slower. When you feel that firing-rate just does not clean enemies fast enough, add few stinger rockets.

Stinger rockets come in sets of three. They go through all the enemies, so if they're lined up vertically, you can shoot multiple with a single shot. Stingers are especially usable against the famous "endless loop" of red alien ships that sometimes shows up.

Wave emitter is a powerful weapon that sends two horizontal plasma waves that clean your flanks of both enemies and their bullets. Brave pilots fly in the midst of alien swarm and fire a plasma wave to destroy most of them in a single blow.

Space grenade is an ultimate weapon. A single grenade can clean entire alien swarm and sometimes even more. It was invented by Rebels to fight Empire fleet, so it is specially tuned to flight formation that Empire squadrons use. Just make sure you fire it as soon as they show up, and enjoy.


Action Mouse Keyboard
Move ship Mouse movement Cursor arrows
Vertical proton fire Left mouse button Space
Spread proton fire Right mouse button Left CTRL
Plasma wave Middle mouse button Left ALT
Space grenade - D
Stinger rocket - F
Hyperspace Jump - H
Show galaxy map while in game - ESC
Toggle in-game stats - TAB
Pause game - P
Screenshot - F12

These are the default keys. You can reconfigure them by selecting Config -> Audio/Input -> Configure Keys option from the main menu.

System requirements

Intel Pentium II 450 MHz or equivalent AMD processor
Windows 98, Me, 2000, XP or Vista
64 MB or more of RAM
OpenGL enabled 3D graphic card
30 MB of hard disk space

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