How to Download Cosmic Invasion

1. Click on the Cosmic Invasion download button below.
2. Choose "Install" to install the game on the windows steam client.
3. Follow the on-screen prompts
4. Let it download the Full Version.
5. Once a game is downloaded, use the Windows Steam Client to play the game.

=== Download Game ====

Download for pc →

This guide describes how to use Steam Proton to play and run Windows games on your Linux computer. Some games may not work or may break because Steam Proton is still at a very early stage.

1. Activating Steam Proton for Linux:
Proton is integrated into the Steam Client with "Steam Play." To activate proton, go into your steam client and click on Steam in the upper right corner. Then click on settings to open a new window. From here, click on the Steam Play button at the bottom of the panel. Click "Enable Steam Play for Supported Titles."

Alternatively: Go to Steam > Settings > Steam Play and turn on the "Enable Steam Play for Supported Titles" option.

Valve has tested and fixed some Steam titles and you will now be able to play most of them. However, if you want to go further and play titles that even Valve hasn't tested, toggle the "Enable Steam Play for all titles" option.

2. Choose a version
You should use the Steam Proton version recommended by Steam: 3.7-8. This is the most stable version of Steam Proton at the moment.

3. Restart your Steam
After you have successfully activated Steam Proton, click "OK" and Steam will ask you to restart it for the changes to take effect. Restart it. Your computer will now play all of steam's whitelisted games seamlessly.

4. Launch Stardew Valley on Linux:
Before you can use Steam Proton, you must first download the Stardew Valley Windows game from Steam. When you download Stardew Valley for the first time, you will notice that the download size is slightly larger than the size of the game.
This happens because Steam will download your chosen Steam Proton version with this game as well. After the download is complete, simply click the "Play" button.

Windows Pc Requirements

Minimum:

• OS: Windows 7+
  
• Processor: 2.4 GHZ
  
• Memory: 1 GB RAM
  
• Storage: 250 MB available space

Recommended:

• OS: Windows 10
  
• Processor: 2.8 GHZ
  
• Memory: 2 GB RAM
  
• Storage: 250 MB available space

Linux Requirements

No minimum requirements!!
No maximum requirements!!

Mac Requirements

No minimum requirements!!
No maximum requirements!!

Cosmic Invasion is a combination of strategy mixed in with quick frantic battles against fleets that contain many ships. The strategic layer is a 20 X 30 grid with 600 sectors. Move your ships around to protect your home planet and space stations from the invading fleets of UFO ships.

Cosmic Invasion is a combination of strategy mixed in with quick frantic battles against fleets that contain many ships. The strategic layer is a 20 X 30 grid of sectors which creates 600 sectors in all. You move your ships around trying to protect your home planet and space stations from the invading fleets of UFO ships. You are also trying to collect resources from asteroid fields, nebulas and crystalline planets, and collecting ships modules at certain planets. Use these modules to increase your ships stats.


The Invasion
The space around your planet is being invaded by vast hordes of alien UFO fleets. You must protect your planet at any cost as losing it will end the game. You also have 4 space stations scattered around your quadrant of space. Try to hold on to these space stations as they serve as a great place to repair your ships, and they greatly add to your score.

Your Ships
You are not left defenseless as you will start the game with 5 ships, one at each of the 4 space stations and one at your home planet. You can build more ships by collecting metals. You can collect modules from most types of planets, and you use these to upgrade the stats of your ships. There are 9 different types of modules with 3 levels of each of them.

Resources
The game only contains 3 types of resources, metal, science and crystals. Metals are used to build new ships and to create repair kits for your ships. Science is used mostly for researching new technologies. Crystals are used for installing modules onto your ships.

You can collect metals by searching asteroid fields. Science and be found by searching nebulas and crystals are found on crystalline planets.

Technology
As you collect science from nebulas, you use them to research technologies that will greatly improve your chances to hold off the invading fleets a bit longer. These technologies will increase your repair rates and reduce the time it takes you to move and search areas.

Alien UFO Fleets
Early in the game the size of the alien fleets will be 3-4 ships, and they will just be scout ships. These are the slowest and weakest of the 5 alien UFO ship types. But as the game progresses the fleet size will grow as will the types of ships they contain. Seeing fleets of 15-20 ships will be common during the late part of the game.

UFO Spawn Locations
The game will start with 3 to 6 spawn locations and a new spawn location will appear every 7 to 10 turns depending on the skill level you started the game with. Its this progression that will eventually lead to you losing the game... but keep in mind your goal is to get the highest score possible!

Combat
Combat is very unique and has a very quick pace to it. UFO ships will start to appear and move while shooting both bullets and missiles. They will dance around the skies and then disappear just as quickly as they appeared. You will move your ships aimer around the screen and fire both machine gun bullets and missiles.

Ending The Game
The game ends when you have either lost your home planet, or you have lost all of your ships. You score points each turn for the remaining armor of your space stations and home planet, so even just taking damage to them will reduce your score each turn. You also score points for destroying UFO's during combat.

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