Linux Games Ubuntu Downloads Open Source Free

Description from the site:
"The last human has been slain by evil killer robots. You are the one remaining humanoid battle droid. Your mission is to avenge the human race, and destroy the four bots of the Apocalypse - Ieiunitas, Bellum, Lues and Letum!
Power up with ever more powerful weaponry as you blast your way through the levels, avoiding Chasers, Turrets, Spawners, Minelayers, bombs, and bullets! "

Gameplay is heavily inspired by Robotron:2084.

License: commercial ($19.95)

Additional System Requirements: Java Runtime Environment 1.4 or better, OpenGL, OpenAL

A working version of UMark for Linux (native) has been released today. While only in beta status, it supports most of the features of its Windows® counterparts. UMark is an open source graphical interface and data collection system for running benchmarks with Unreal® Tournament 2003/2004. It is also coupled with a searchable online database called UMark Online.

This new release will provide the Linux gaming and hardware community with a means to benchmark a popular 3D engine comparable to the Windows® platform. The Linux version doesn't have support for the UMark Online benchmarking database yet, but with future releases, UMark Online will bridge the gap in benhcmarking between the two operating systems.

License: free

Additional System Requirements:
UT2004
Gtk+ 2.0, automake, perl 5, and the packages needed to compile Gtk+ 2.x programs in the C programming language.

Umbra is a simple computer role-playing game, written in Python. The world is randomly-generated for new play every time, but there is an eventual goal and storyline. It was heavily influenced by roguelike games, Alternate Reality, console RPGs, and the works of H.P. Lovecraft and Clark Ashton Smith.

License: free

Additional System Requirements: Python 2.1

A castle is being taken over by an army of monsters. In this graphical fantasy MMORPG you can either fight and try to save the reign, or you can join the evil forces. Combats, Magic, Weapons, Spells, Guilds, Buildings, Buy/Sell. You play immediately with your browser, no download nor registration required. Has music and sound. Invite your friends to help you!

License: free

Blocks in two different colours fall down and you are going to make a line contain blocks of only one colour. Then that line will dissappear. It may sound easy, but it's not.

License: free

Additional System Requirements: SVGALIB

Universal Boxing Manager is a boxing manager simulation.

Manage up to 6 different boxers, each one with different stats and skills, in 17 weight categories.

Search and hire new talents from a huge database of over 1000 unique boxers. Arrange fights, buy new training tools, hire better medical staff, and watch the boxers fighting for real in a top view of the ring!

You can customize completely your manager by age, nationality and various skills that really make the game different each time you play it!

License: shareware (24.95$)