Overview#
Extra Planets is a massive add-on for the Galacticraft mod, specifically designed for Minecraft versions 1.12.2 and 1.11.2. It expands the reach of space exploration beyond Mars and Venus, allowing players to visit every major planet in our solar system, numerous moons, and even the distant habitable world of Kepler 22b.
The mod introduces a progression system based on Rocket Tiers (4-10), advanced machinery, and survival mechanics like Radiation and Pressure. To survive the harsh environments of the outer planets, players must craft specialized Space Suits and Thermal Padding. This wiki serves as the definitive guide for MJRLegends' Extra Planets mod.
Planets and Moons#
Extra Planets adds a vast array of celestial bodies. Each planet requires a specific Rocket Tier to reach and features unique gravity, temperature, and atmospheric conditions.
Celestial Bodies Table
| Planet/Moon | Rocket Tier | Gravity | Temperature | Notable Resources |
|---|---|---|---|---|
| Mercury | Tier 4 | 38% | Extremely Hot | Mercury Ore, Carbon |
| Ceres | Tier 4 | 9% | Cold | Uranium Ore |
| Jupiter | Tier 5 | 254% | Cold (Gas Giant) | Palladium, Red Gem, Nickel |
| Saturn | Tier 6 | 106% | Cold (Gas Giant) | Magnesium, Slime Ore |
| Uranus | Tier 7 | 90% | Extremely Cold | Crystal, White Gem |
| Neptune | Tier 8 | 114% | Extremely Cold | Zinc, Blue Gem |
| Pluto | Tier 9 | 6% | Extremely Cold | Tungsten Ore |
| Eris | Tier 10 | 8% | Extremely Cold | Dark Iron Ore |
| Kepler 22b | Tier 10 | 100% | Habitable | Kepler 22b Iron/Copper/Tin |
Moons
- Mars Moons: Phobos, Deimos
- Jupiter Moons: Io, Europa, Ganymede, Callisto
- Saturn Moons: Rhea, Titan, Iapetus
- Uranus Moons: Oberon, Titania
- Neptune Moons: Triton, Proteus
Rockets and Vehicles#
To reach the outer reaches of the solar system, players must progress through seven new tiers of rockets. Each rocket is crafted using the NASA Workbench and requires a specific schematic found in the previous planet's dungeon.
Rocket Tiers
- Tier 4 Rocket: Required for Mercury and Ceres. Schematic found on the Moon.
- Tier 5 Rocket: Required for Jupiter. Schematic found on Mercury.
- Tier 6 Rocket: Required for Saturn. Schematic found on Jupiter.
- Tier 7 Rocket: Required for Uranus. Schematic found on Saturn.
- Tier 8 Rocket: Required for Neptune. Schematic found on Uranus.
- Tier 9 Rocket: Required for Pluto. Schematic found on Neptune.
- Tier 10 Rocket: Required for Eris and Kepler 22b. Schematic found on Pluto.
- Tier 10 Electric Rocket: A specialized endgame vehicle that runs on electricity rather than fuel.
Custom Vehicles
- Mars Rover: An upgraded version of the Moon Buggy with more storage and better speed.
- Venus Rover: Designed to withstand the corrosive atmosphere of Venus.
Mechanics: Radiation and Pressure#
Extra Planets introduces two critical survival mechanics that make space exploration more challenging: Radiation and Pressure.
Radiation
Radiation is measured as a percentage on the player's HUD. High radiation levels cause debuffs and eventually death.
- Mitigation: Players must wear Space Suits (Tiers 1-4). Each tier provides higher radiation resistance.
- Lead Lining: Armor can be reinforced with Lead to provide additional protection.
- Decontamination: Using a Radiation Station or consuming specific items can lower radiation levels.
Pressure
Gas giants and high-gravity planets exert immense pressure. Without a proper Pressure Layer in your Space Suit, you will take rapid damage.
- Tiered Protection: Higher-tier Space Suits are required for the high-pressure environments of Jupiter, Saturn, and Neptune.
Space Suits and Equipment#
Standard Galacticraft armor is insufficient for the outer planets. Extra Planets adds tiered Space Suits that combine Armor, Radiation protection, and Pressure resistance.
Space Suit Tiers
| Tier | Primary Material | Protection Level |
|---|---|---|
| Tier 1 | Lead / Aluminum | Basic Radiation & Pressure |
| Tier 2 | Titanium | Moderate Radiation & Pressure |
| Tier 3 | Palladium | High Radiation & Pressure |
| Tier 4 | Zinc | Maximum Radiation & Pressure |
Thermal Padding
While Galacticraft provides Tiers 1-2, Extra Planets adds:
- Tier 3 Thermal Padding: Crafted using Compressed Desh.
- Tier 4 Thermal Padding: Crafted using Compressed Carbon.
- Tier 5 Thermal Padding: The ultimate thermal protection for the coldest/hottest environments.
Machines and Technology#
The mod adds "Advanced" versions of base Galacticraft machines that are faster and more efficient.
- Advanced Refinery: Processes Oil into Fuel significantly faster than the standard version. Requires Palladium Ingots.
- Advanced Oxygen Compressor: Compresses oxygen into tanks at a much higher rate.
- Advanced Fuel Loader: Loads fuel into rockets with increased speed.
- Circuit Fabricator: An upgraded version for creating advanced wafers and processors.
- Solar Panels (Tier 3 & 4): Massive power generation blocks for space stations and bases.
- Radiation Station: A block used to remove radiation from the player's body.
Mobs and Bosses#
Every planet features a unique dungeon and a powerful boss that guards the next Tier's rocket schematic.
Boss List
| Boss Name | Location | Drops |
|---|---|---|
| Evolved Magma Cube | Mercury Dungeon | Tier 5 Rocket Schematic, Tier 4 Dungeon Key |
| Evolved Fire Bat | Ceres Dungeon | Tier 5 Rocket Schematic (Alternative) |
| Evolved Ghast | Jupiter Dungeon | Tier 6 Rocket Schematic, Tier 5 Dungeon Key |
| Evolved Ice Slime | Uranus Dungeon | Tier 8 Rocket Schematic, Tier 7 Dungeon Key |
| Evolved Snowman | Neptune Dungeon | Tier 9 Rocket Schematic, Tier 8 Dungeon Key |
| Creeper Boss (Pluto) | Pluto Dungeon | Tier 10 Rocket Schematic, Tier 9 Dungeon Key |
| Evolved Giant Zombie | Eris Dungeon | Tier 10 Rocket Schematic, Tier 10 Dungeon Key |
Evolved Mobs
Standard mobs like Creepers, Zombies, and Skeletons appear on planets but are "Evolved." They are larger, have more health (30+), and wear space helmets to survive the vacuum.
Biomes and Structures#
Extra Planets features a diverse range of biomes, especially on the habitable planet Kepler 22b.
Kepler 22b Biomes
- Elysian Fields: Vast plains with unique flora.
- Elysian Forest: Dense forests with blue-tinted trees.
- Kepler Blue Ocean: Large bodies of water.
- Red Desert: Arid regions with red sand.
Structures
- Dungeons: Tiered underground complexes (Tiers 4-10) found on every planet.
- Villages: Alien villages can be found on most planets and moons, inhabited by alien villagers who trade unique items.
- Space Stations: Players can create custom space stations for every new planet added by the mod.
