Universe at War: Earth Assault is a real-time strategy game developed by Petroglyph and published by Sega. Universe at War: Earth Assault, is intended to be the first game in a planned series of games to be called the Universe at War series.

The game is something of a celebration of the history of science fiction, using a number of plot elements that were the bread and butter of pulp scifi but are recognizably archaic today. It also features a number of in-jokes and references to other works: for instance, the Novus Mirabel hero unit uses a mecha of distinctly eastern design and attacks using anime troops; their jet fighter's ability Death Bloom is the superweapon from The Last Starfighter. Many other references are made throughout the game.
(Wikipedia)

ACHIEVEMENTS

Complete the following achievements to unlock Microsoft Gamerscore points.

Building The Network (5 points)
Construct 1 of each type of Novus structure during a Ranked or Conquer the World match.

Under Novus Control (20 points)
Requires every territory in Conquer the World to be owned by the Novus player.

Can't Stop Novus (8 points)
Defeat 5 Ranked Game opponents while playing as Novus.

Whirling Dervish (15 points)
Destroy 100 enemy aircraft using only Dervishes during Conquer the World matches.

The Power Must FLOW (5 points)
Build 50 Flow Conduits during a single Ranked or Conquer the World match.

Pure OHMage (12 points)
Win 5 multiplayer games against other Novus opponents during a Ranked Game.

Research is Key (35 points)
Defeat 5 Ranked Game opponents in a row while playing as Novus.

Swift Victory (5 points)
Achieve victory within the first 18 minutes of a Ranked Game.

Time Means Nothing (35 points)
Defeat 5 Ranked Game opponents in a row while playing as Masari.

Dark Matter FTW (10 points)
Spend 90% of your time in "Dark" mode during 4 Conquer the World matches.

Blinded by the Light (10 points)
Spend 90% of your time in "Light" mode during 4 Conquer the World matches.

Unlimited Power (15 points)
Defeat 1 Ranked Game opponent while playing as Masari.

Masari Global Influence (20 points)
Requires every territory on the Conquer the World globe to be owned by the Masari player.

Gifts are Nice (5 points)
Construct 1 of each Masari structure during a Ranked Game or Conquer the World match.

The Sacred Cow (10 points)
Collect 200 cows in Ranked or Conquer the World multiplayer games using Kamal Rex.

Peace through Power (8 points)
Win 3 Conquer the World games using only the "Assault" research branch.

Mutation Madness (8 points)
Win 3 Conquer the World games using only the "Mutagen" research branch.

Technological Terror (8 points)
Win 3 Conquer the World games using only the "Quantum" research branch.

Customization Made Easy (5 points)
Defeat 3 Ranked Game opponents while playing as Hierarchy.

My Wish is your Command (23 points)
Requires every territory in Conquer the World to be owned by the Hierarchy player.

Hierarchy Domination (38 points)
Defeat 5 Ranked Game opponents in a row while playing as Hierarchy.

The Basics (10 points)
Complete the Prelude Campaign.

Novus Campaign (15 points)
Complete Novus Campaign on normal or hard difficulty.

Hierarchy Campaign (35 points)
Complete Hierarchy Campaign on normal or hard difficulty.

Masari Campaign (45 points)
Complete Masari Campaign on normal or hard difficulty.

True Power (60 points)
All campaigns completed on normal difficulty.

Can't Touch This (70 points)
All campaigns completed on hard difficulty.

Zombie Luvin' (20 points)
Convert 100 civilians into zombies in skirmish, scenario or campaign games.

Sweep the Leg (10 points)
Destroy your first Hierarchy Walker in a skirmish, scenario or main campaign game.

Cow Go Moo (20 points)
Collect 100 mutilated cows using Reapers in skirmish, scenario or campaign games.

Nothing to See Here (20 points)
Using Altea, Unmake 30 enemy units during a skirmish game session.

Master Tactician (25 points)
Win 1 scenario campaign game.

Supreme General (60 points)
Play through 1 scenario campaign on medium difficulty without losing any battles.

Infiltrate The Network (25 points)
Inflitrate the enemy Flow Conduit network in a skirmish game using only the Founder.

Crater Creator (15 points)
Destroy five enemy structures using any Super Weapon during skirmish battles.

Demolition Expert (15 points)
Defeat 1 medium AI in less than 20 minutes in a skirmish battle.

Hoover Maneuver (40 points)
Use Reapers to acquire 100,000 additional Raw Materials during a skirmish session.

Skirmish King (50 points)
Defeat 3 hard AI players during a skirmish session.

No Need For Heroes (35 points)
Defeat 1 hard AI player in a skirmish battle without building any heroes.

Feel The Burn (35 points)
Defeat two medium AI players during a skirmish session.

Opposites Attract (15 points)
Defeat 5 opponents on the opposite platform.

Forged Alliance (35 points)
Play a team game with someone on the opposite platform.

Also, feel free to check Softpedia's review here.


Here is a mission from the game: