Letter: O
- ORBit-0.5.17-20.al3: CORBA Object Request Broker for GNOME-1 compatibility
- OpenEXR-1.4.0a-3.al3: A high dynamic-range (HDR) image file format
- OpenSceneGraph-1.2-1.al3: High performance real-time graphics toolkit
- obby-0.4.1-2.al3: A library which provides synced document buffers
- obconf-1.6-3.al3: A graphical configuration editor for the Openbox window manager
- obexftp-0.20-3.al3: Tool to access devices via the OBEX protocol
- obmenu-1.0-3.al3: A graphical menu editor for Openbox
- ocaml-3.09.2-2.al3: Objective Caml compiler and programming environment
- ochusha-0.5.8.2-3.al3: A GTK+ 2ch.net BBS Browser
- oddjob-0.27-8: A D-BUS service which runs odd jobs on behalf of client applications
- ode-0.7-2.al3: High performance library for simulating rigid body dynamics
- offlineimap-4.0.16-2.al3: Powerful IMAP/Maildir synchronization and reader support
- ogdi-3.2.0-0.5.beta1.al3: Open Geographic Datastore Interface
- ogre-1.2.2-2.p1.al3: Object-Oriented Graphics Rendering Engine
- oidentd-2.0.8-2.al3: Implementation of the RFC1413 identification server
- oki4linux-2.1gst-1.al3: OKIPAGE (4w, 4w Plus, 6w, 8w, 8w Lite, 8z), OL400w printer driver
- oneko-1.2-4.al3: Cat chases the cursor
- ooo2txt-0.0.6-2.al3: Convert OpenOffice documents to simple text
- oooqs2-1.0-3.al3: OpenOffice.org Quickstarter 2
- oorexx-3.1.1-1.al3: Open Object Rexx
- openal-0.0.9-0.9.20060204cvs.al3: Open Audio Library
- openalpp-20060714-3.al3: Object Oriented version of OpenAL
- openbabel-2.0.2-5.al3: Chemistry software file format converter
- openbox-3.3.1-4.al3: A highly configurable and standards-compliant X11 window manager
- opencdk-0.5.13-1.al3: Provides basic parts of the OpenPGP message format
- openct-0.6.11-1.al3: Middleware framework for smart card terminals
- opencv-1.0.0-3.al3: Collection of algorithms for computer vision
- openlierox-0.57-0.2.beta1.al3: Addictive realtime multiplayer 2D shoot-em-up
- openmpi-1.0.2-1.al3: Open Message Passing Interface
- openoffice.org-dict-cs_CZ-20060303-3.al3: Czech spellchecker and hyphenation dictionaries for OpenOffice.org
- opensc-0.11.1-6.al3: Smart card library and applications
- openslp-1.2.1-6.al3: Open implementation of Service Location Protocol V2
- openvpn-2.1-0.17.rc2.al3: A full-featured SSL VPN solution
- openvrml-0.16.3-3.al3: VRML/X3D runtime library
- optipng-0.5.5-1.al3: A PNG optimizer and converter
- orage-4.4.0-1.al3: Time-managing application for Xfce4
- orange-0.3-3.cvs20051118.al3: Squeeze out installable Microsoft cabinet files
- orpie-1.4.3-5.al3: A fullscreen console-based RPN calculator
- ortp-0.12.0-1.al3: A C library implementing the RTP protocol (RFC3550)
- osgal-20060903-3.al3: Adapts OpenSceneGraph to use OpenAL++
- osgcal-0.1.44-4.al3: Adapts OpenSceneGraph to use Cal3D
- osiv-0.1.1-5.al3: Open Source Image Velocimetry
- otrs-2.1.5-1.al3: The Open Ticket Request System
- ots-0.4.2-10.al3: A text summarizer
- overgod-1.0-5.al3: Another Asteroid like game