In Double Envelopment, you are in charge of constructing an army, managing the money you have available, and ordering your units around the map, keeping them alive while capturing enemy settlements and not running out of money.

GAMEPLAY

During gameplay, you have a gods-eye view of a 3D battlefield, with the ability to move your camera every which way so you can keep tabs on every battle, army, and unit. If you need units to disengage and go somewhere else, you have the 'Direct Troops' Button to use and select which units need moving, using a select tool able to cover and select multiple units at once. Alternatively, you can also use the 'Attack Mode' Button to switch attack modes for your units, between attacking the nearest enemy, or switching to defense mode and allowing enemies to wear themselves out against your defending units before ordering another offensive.

In campaign mode, your starting point is the main base building, a military base that allows you to spawn your units in campaign mode. You must spawn your units in close proximity to the base, with the exception of missile launchers, paratroopers, and cargo jets.  Aside from your offensive objectives, it is your secondary goal to defend your base from attacks, because losing all your bases, NOT just losing all your units, will result in losing the game.

Your primary objective in each level is to assault cities and capture them, defeating every enemy unit inside the city and occupying it. Most settlements on a map will have supply lines (red boxes indicating them), and occupying the lines long enough will disable them. Cutting all of a cities supply lines will cause every enemy unit inside the city to lose health and strength, facilitating an easier assault.

During play mode, it is also important, that you spawn command posts near your front line, as they serve the same function as your main base, allowing you to spawn your units near them, without having to spawn them at the base and order them all the way across the map just to get to the front line. You are only able to place command posts near friendly units, and you also must guard them as they can be destroyed by enemy fire.

You must also destroy every enemy command post (red-colored barracks buildings) you see on the map, using any units you have available, as enemy command posts will continue spawning new enemies until they are destroyed.

You must take over every settlement on the map, making sure to not run out of money or units. You must also defeat every enemy unit on the map to complete the mission.

UNITS

You have access to seven distinct 3D units-

-Infantry riflemen, foot soldiers with standard issue assault rifles

-Anti-tank soldiers, wielding bazookas, ideal against large groups of enemies and tanks

-Snipers, best used in groups and at long range

-Paratroopers, which can only be deployed during play mode but can be dropped anywhere on the map, not just near bases or command posts

-Main battle tanks, for spearheading large offensives and plowing through enemy lines

-Missile launch sites, able to launch ballistic missiles against enemy units, command posts, and buildings

-Cargo jets, to deploy units other than paratroopers behind the lines and disrupt enemy defenses.

The enemy faction has access to all of these unit types except for missile launchers and cargo jets.

Your menus for spawning units are located at the top of the UI in both campaign and sandbox modes.

UNIT BUFFS AND INFRASTRUCTURE

During gameplay, it is critical that your units earn buffs to their stats (health, speed, range, and strength). Starting out, enemy units have a +3 advantage in speed, range, and strength (as war favors the defender).

You can earn buffs to your units' stats by capturing-

-Gas Stations, which earn your units a +1 advantage in speed, range, and strength.

-Banks, which each net you 3,000 dollars upon capture.

-Airfields, earning your units +2 points in speed, range, and strength

-Airports, earning your units a +4 point increase in those stats

-Cities in general, which earn you 100 dollars for each NON-DAMAGED building in the city, as well as fully healing every unit of yours inside the city upon capture.

Traveling on roads gives your units a +5 speed buff for as long as they are on it, however, keeping all of your units on roads risks having them funneled into choke points that enemy units will mass towards, blunting any advance.

SANDBOX MODE

In Sandbox mode, you have the ability to use the in-game Map Editor (the bottom-right of the UI in Sandbox Mode) to create your own maps, with its own road networks, cities, supply lines, biomes, mountains, and vegetation.

You have access to all units, ally and enemy, without needing bases to place them near.

Sandbox mode will allow to test out your RTS skills in multiple different environments of your making. Or if you just like having fun making your own world and watching cartoon soldiers fight and kill each other other in it, that's cool too!