Advanced Tech - All units will be futuristic. No shells or bullets, more lasers and energy weapons.
Advance Wars - Converts YNT units into Advance Wars 1 and 2 units.
Airborne Troopers - Paratroopers galore for each side, so get the air cover ready.
Air War - No high-tech units, just troops and aircraft.
All-Knowing - Players get the 'Psychic Sensor' effect across the map. Spot attacks from your enemy's base.
All-Seeing - Upon deploying your ConYard, the entire map becomes visible.
Alone in the Dark - ConYards produce a 'Gap Generator' effect and radar is unavailable.
Assault - Destroy the enemy's very strong Assault Flag to win.
The Art of Rushing - Everything gets built and trained faster.
Battle - Standard battle mode with optional teams.
Blitzkrieg - Basic troops, tanks and engineers build cheap and fast.
Bloodbath - There are no bases, just standard guerilla warfare.
Budget Cutback - Only one type of unit can be built(1 GI, 1 Grizzly, etc.). Currently doesn't work with AI.
The Clone Wars - All sides can build $2000 Cloning Vats.
Command Post Capture - Capture Tech Outposts to allow for base expansion on specially-made maps.
Cooperative - Battle a campaign with your friends. Untested, so unsure if it works.
Crate Golden Gun - This mode combines 'Crate War' with 'Golden Gun'.
Crate Golden Gun 2 - This mode combines 'Crate War' with 'Golden Gun 2'.
Crate War - The battlefield is plagued with powerup crates.
Dimension X - See the 'Dimension X' section for details.
Economic Society - Harvesters are cheaper, faster, stronger, and can carry more ore.
First Come, First Serve - All Tech buildings are invincible.
Free-for-All - Standard battle with no teams.
Golden Gun - All attacking units and structures kill or die in one hit.
Golden Gun 2 - All units and structures kill or die in one hit. Watch out for debris.
Impenetrable Fortress - Attacking structures are invincible.
Industrial Revolution - Non-attacking structures cost $100.
Infantry Annihilation - Very cheap troops, and lots of them. Blood will fly!
Infantry War - Troops, miners, and troop-carrying units only.
Insane Crate War - Way more crates than you know what to do with.
Land Rush - Players must rush to find a good base location.
Meat Grinder - Only low-tech units and structures up to radar level allowed.
Medal of Dishonor - Units don't gain veterancy.
Medical Revolution - All units self-heal.
Megawealth - Capture Oil Derricks to earn money; miners prohibited.
Naval War - Only naval units and very low-tech land units allowed.
Power Play - Protect your one and only power plant; if it gets destroyed, you'll soon fall.
Rolling Thunder - All tanks, basic troops, and engineers only.
Shadow War - All offensive units have cloaking devices.
Special Operations - No country-specific units; all Allies get the Sniper, etc.
Star Trek - Converts YNT units to Star Trek units.
Star Wars - Converts YNT units to Star Wars units.
Team Alliance - Standard battle with fixed teams.
Tech Fortress - This mode combines 'Unholy Alliance' with 'Impenetrable Fortress'.
Total Armageddon - All factions get all superweapons and super-units.
Unholy Alliance - Build units and structures from all four factions.
Unlimited War - All build limits on units are removed, and the queue limit is 10,000.
Urban Chaos - Garrisonable buildings are tougher and hold more troops.