Pixel Starships Wiki
Pixel Starships Wiki
Starship Reactors
Small Reactor   Fusion Reactor   Power Capacitor   Coal Reactor

Starbase Reactors

Small Reactor   Large Reactor   Backup Capacitor

"Limited power source for basic ship."

Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7

Ship Level 1 2 3 4 5 6 7 8 9 10 11 12
Number Available 1 1 2 2 3 3 3 3 3 3 3 3
Icon Abbreviation Size Stat Enhancement AI Category
ReactorIcon.png REA 3x2 None Reactor
Level PowerPower.png Generated Upgrade Ship Level Required
1 0-2 50 2m 1
2 0-3 250 5m 1
3 0-4 650 10m 2
4 0-5 1.25K 30m 3
5 0-6 2.5K 1h 3
6 0-7 20K 2h 4
7 0-8 40K 4h 5


The Small Reactor is a 3x2 Reactor automatically built and unlocked at level one. It's the earliest and cheapest way of generating power for the player's ship. With the ability to build 3 Small Reactors at level 5, it also provides the most power out of all the Reactors. Thus, most, if not all players utilize the Small Reactor as much as they can.


Battle Mechanics

The Small Reactor will continue to provide power even when it's upgrading, EMP'd, or System Hacked. The Small Reactors health bars also influence how much power it generates, with one health bar representing one power. Reactors in general also have some hidden mechanics. The game forces the player to have at least one Reactor on their ship at all times. In addition, if no Reactors on the player's ship are at full HP, the game will automatically give the player a 0% Escape Rate, regardless of the Bridge.

In Combat

Small Reactors are a massive target for enemy boarders due to how much power they generate. Instead of wasting Crew potential by placing them in the Small Reactor, many players recommend placing Landmines in it instead. Separating them with Security Gates will also work. In general, Small Reactors should be accessible by all Crew and should have at least 2 blocks of Armor around them.

When To Use

There really is no reason not to use the Small Reactor. It's cheap and provides a lot of power, and the player will always benefit from extra power.


The Small Reactor cannot be programmed with AI.

Crew Interactions

The Small Reactor cannot be buffed by Crew but can be repaired.


  • The player starts off the game with a level 1 Small Reactor onboard their ship.


Powered Rooms

Weapon Rooms

Weapon Rooms: Mineral Mining LaserBolterKias PhaserK BlasterMinigunPhoton PhaserPlasma DischargerParticle DischargerLaser BlasterRailgunPhoton DisruptorEMP CannonIon Cannon

Consumable/Platform Rooms: Missile LauncherMulti Missile LauncherHangarTeleportSmall Weapons PlatformMedium Weapons Platform

Defense Rooms

Defends Via Damage: Anti Craft LaserSecurity GateSmall Gas TrapZaki Tentacle GardenDisintegrator Gate

Defends Via Support: Shield GeneratorShield BatteryMed BayToiletFlower GardensAndroid StudioVisiri MechbayZongzi FactoryRadar

Defends Via Dodge: EngineFusion Drive EngineCloak Generator

Support Rooms

Supports Via Healing: Med BayToiletFlower Gardens

Reactors: Small ReactorFusion ReactorCoal ReactorPower CapacitorLarge ReactorBackup Capacitor