How to install Endless Sky 0.9.6 released on Ubuntu

     Endless Sky is a sandbox-style space exploration game similar to Elite, Escape Velocity, or Star Control. You start out as the captain of a tiny space ship and can choose what to do from there. The game includes a major plot line and many minor missions, but you can choose whether you want to play through the plot or strike out on your own as a merchant or bounty hunter or explorer.

Endless Sky Changelog:

• Bug fixes:
• Coalition jobs will now "repeat" instead of only being offered once.
• Typo fixes.
• Fixed a bug that caused wildly inaccurate depreciation values on some computers.
• Fixed a crash due to responding to mouse clicks when the player's flagship is dead.
• Fixed a bug where "surveillance" ships never succeed in scanning.
• Saved games on planets that were created by events now load correctly.
• Fixed incorrect accelerator hints being displayed in the info panel.
• Hopefully fixed the bug of the "last" sound not loading properly on some Windows systems.
• "Entering" ships no longer forget their destination if the game is reloaded.
• Clicking and dragging now only selects ships if no other panel was open when clicking.
• Fixed a bug that kept the "Sad Archie" mission from working in 0.9.5.
• Fixed depreciation not being applied to auto-sold fighters and outfits.
• Made it so you can't hail wormholes, even if they're marked as "inhabited."
• If you're in an uninhabited system, fixed how commodity prices in other systems show up in the map.
• Made it so the first TMBR mission doesn't get offered on pirate worlds.
• Fixed derelict ships that had been captured reappearing.
• Fixed the NPC message showing multiple times if you capture a ship you needed to "evade."
• The selected planet is now cleared in the map if you change your destination via the jump key.
• Fixed shipyard and outfitter maps showing what's available in unexplored systems.
• Game content:
• Updated the scanner descriptions to describe the benefit of multiple scanners.
• Drug running missions now only get offered in human space.
• Added hail messages for friendly pirates.
• The Coalition intro mission no longer assumes you have already met the Hai.
• New landscape images.
• Added messages when you succeed in destroying each "scattered remnant" Korath fleet.
• Made the "Defend Spera Anatrusk" battle a little bit easier.
• Added images for all the Coalition outfits and unique sounds for all their weapons.
• Korath exile worlds no longer fine you for illegal cargo.
• The TMBR missions can no longer interrupt missions from the main story line.
• The first part of the Syndicate Capture mission now requires your escorts to accompany you.
• Fixed an incorrectly set "habitable" zone in the Dokdobaru system.
• Switched back to the full-resolution icon on Mac OS X (rather than the "window icon").
• Added "autosave" tags to key missions in the Wanderer story line.
• Reduced the Unfettered jump drive payoff to be more in line with the drive's depreciated value.
• Game mechanics:
• Made depreciation happen about three times slower.
• Eliminated death benefits, since depreciation does a better job of balancing capture and plunder.
• Drag now applies to the acceleration from firing weapons and being hit by them.
• Escorts now ignore orders (except "hold position") if you're jumping or in another system.
• You can now select a planet in the map to have the autopilot land there when it reaches that system.
• You can now hail dominated planets to release them from paying tribute to you.
• Auto-aiming now takes "random velocity" into account, making the Bombardment Turret more accurate.
• User interface:
• Added a preference to highlight your flagship to make it easier to distinguish from other ships.
• When naming a new ship, added a button to have the game propose a random civilian name.
• The zooming of the main view now pauses whenever it is not active.
• In the main menu, the "New Pilot" shortcut now only works if no pilot is loaded.
• Escort target brackets no longer show up for escorts that have not taken off yet.
• Reduced the number of scanning warnings that display at the same time.
• Added messages that tell you if someone succeeds in scanning your cargo or outfits.
• The "fail" noise no longer plays over and over if you hold the jump key while out of fuel.
• Ships exiting wormholes no longer make the "exiting hyperspace" noise.
• Under the hood:
• The help messages for new players are now configurable via a text file. 

Installation instructions:

 Opening terminal (Ctrl+Alt+T) and running the command:

$ sudo add-apt-repository ppa:mzahniser/endless-sky $ sudo apt-get update $ sudo apt-get install endless-sky