Update on September 21, 2026: We last updated this article with the latest Research Tree upgrades.
Mini War is about capturing territories with advanced weapons and strong military units. You must also build a strong economy with efficient civilians to produce output in large quantities. Building a secure empire is also equally important for your defense. At first, you start weak, like in any other game. As you progress, you unlock upgrades that make you a formidable force. It is possible with the Research Tree in Mini War. In this article, we detail everything you need to know about this in-game mechanic.
What is the Research Tree
Research Tree is a feature that lets you unlock upgrades related to military, production, and market, as well as advanced end-game features. You can access the system by tapping the Research button on the left side of the screen. Each upgrade costs money, with subsequent upgrades being progressively more expensive.
There are 62 upgrades in total that you can unlock in the Mini War Research Tree. Basically, there are three upgrade paths: Military, Economy, and Systems. And, you will find related upgrades in each category. Find out about all upgrades and their cost in the next section.
All Mini War Research Tree Upgrades and Cost
You can perform various upgrades in each category. For instance, you can upgrade troop damage, army slots, army size, rocket limit, and more in the Military category. And, each upgrade follows a specific path. For instance, if you want to upgrade your troop damage, you must follow a fixed path in the Research Tree: Army Training > Officer Training > Elite Training > Mech Research> Spider Base > Air Fortress.
The other two categories, Economy and System, also follow a similar pattern. That said, below are the details of all category upgrades, costs, and their effects:
Military Upgrades
Troop Damage
UpgradePath: Army Training > Officer Training > Elite Training > Mech Research > Spider Base> Air Fortress
Upgrades
Cost
Unlock Time
Effects
Army Training
$1,000
30 seconds
5% troop damage
Officer Training
$25,000
1 minute
10% troop damage
Elite Training
$2,500,000
30 minutes
25% troop damage
Mech Research
$5,000,000,000
48 hours
Unlocks the Mech Station
Spider Base
$25,000,000,000
48 hours
Unlocks the Spider Base
Air Fortress
$50,000,000,000
72 hours
Unlocks the Air Fortress
Army Slots
UpgradePath:Army Control > +1 Army > +1 Army II
Upgrades
Cost
Unlock Time
Effects
Army Control
$5,000
1 minute
+1 army slot
+1 Army
$25,000
1 minute
+1 army slot
+1 Army II
$250,000
1 minute
+1 army slot
Army Size
Upgrade Path:Army Size I > Army Size II > Army Size III > Army Size IV
Upgrades
Cost
Unlock Time
Effects
Army Size I
$50,000
5 minutes
+2 Army Capacity
Army Size II
$5,000,000
30 minutes
+3 Army Capacity
Army Size III
$100,000,000
12 hours
+5 Army Capacity
Army Size IV
$5,000,000,000
~32 hours
+5 Army Size
Rocket Limit
Upgrade Path:Army Size III > Rocket Limit I > Rocket Limit II
Upgrades
Cost
Unlock Time
Effects
Rocket Limit I
$500,000,000
24 hours
+1 missile launcher limit
Rocket Limit II
$1,000,000,000
48 hours
+2 missile launcher limit
Troop Range
Upgrade Path:Army Size I > Binoculars > Noctovisor > Radio
Upgrades
Cost
Unlock Time
Effects
Binoculars
$100,000
10 minutes
+5% troop range
Noctovisor
$250,000
30 minutes
+10% troop range
Radio
$1,000,000
1 hour
+20% troop range
Vehicle Damage
Upgrade Path:Officer Training > Ammo Crates > Heavy Cannon > Explosive Ammo
I am Nidesh Acharya, a content writer at TechWiser. As a writer, I cover how-to guides, codes, and tier lists for trending and popular Roblox games. Over four years of writing experience have taught me to craft helpful, comprehensive and one-stop guides for gamers. When I'm not writing, you can find me exploring the Roblox homepage for new and trending games, playing eFootball and grinding gacha games on mobile.
Updated: September 21, 2026 
