7zip
7zip compression/uncompression tool
ACE
ACE compression/uncompression tool
Achilles Life Simulator
Watch a simulation of artificial life and evolution
Agave
Generate color schemes

AlgoBox
Algorithm creation and execution helper
AllTray
Dock any application to the notification area/system tray.

Alleyoop
Find memory-management problems in your programs using the valgrind tool
Arora
Browse the World Wide Web
asciijump
A clone of the dsj game

OpenJDK Java 9 Console
OpenJDK Java 9 Monitoring & Management Console
Smart Card Manager
Enterprise Security Client Smart Card Manager
Balazar Brothers
3D adventure and roleplaying game

Do'SSi Zo'la
Isola game with nice graphics
BibShelf Book Manager
Book collection management application

Biogenesis
artificial life program that simulates the processes involved in the evolution of organisms
Bitmeter
JACK diagnostic tool
Blam Feed Reader
Feed reader
Bug Squish
Squash the bugs before they suck up your blood

Torrent Metainfo Viewer
Viewer and Editor for .torrent files

Camera Monitor
Camera Monitor
CaRMetal
CaRMetal interactive geometry

Celestia (GNOME)
Explore the Universe in this detailed space simulation
System Testing
Test your systems compatibility with Ubuntu
Childsplay
Suite of educational games for young children

Virtual MIDI Keyboard
A virtual MIDI keyboard
Comix
A viewer for comic book archives
CLAM Network Editor
An audio tool to build processing networks by connecting functional boxes
CLAM Prototyper
Runs an audio processing core under a QT designer interface
Clinica
Medical records manager
Configure-Debian
Reconfigure Your Packages
Classrooom control
Teacher tool to control classroom computers
Cowbell Music Organizer
An elegant music organizer

Crack Attack
Puzzle game similar to Tetris Attack
D-RATS
D-STAR Communication Tool
D-RATS Map Downloader
D-RATS Map Downloader
D-RATS Repeater
D-RATS Repeater
Defendguin
Save the Penguins
Desktop Webmail
Compose email in browser
DesktopNova-Tray
A Tray-Icon for DesktopNova
DesktopNova
Changes your background image automatically
Dlume
Simple and easy to use addressbook

Dooble
Browse the World Wide Web
Dopewars
dopewars drug dealing game

Dozzaqueux
Simulator for chemical mixtures

Dr.Geo
Dr.Geo Math Tool

ASCIIpOrtal
Text based puzzle game inspired by the popular video game

dvdisaster
Additional error protection for CD/DVD media

OpenDX Data Explorer
Visualize scientific, engineering and analytical data
Encuentro
Simple program to download and see the content from Canal Encuentro y otros