If I misinterpreted the concept of using threads of the same idea for posting suggestions, please feel free to move this post to a separate thread.
After looking over this similar suggestion, I've decided to post my thoughts on adding Venus.
Traveling -
To travel to Venus, you would need the bare minimum of a Tier 2 Rocket and the usual gear for Oxygen. (Temperature seems to not have been added as of the current GC3 Beta Version, and will be ignored in this part of the post.)
Arrival -
Upon arrival you may notice your temperature bar rise considerably, and that the sun rises from the west, and sets in the east. You may also notice your metal tools and armor starting to corrode / lose durability, and slowly some of your metals and wood you are carrying are beginning to disappear after leaving the rocket's cargo. This is because of the extreme temperature, and corrosion.
Temperature -
Temperature on Venus is 864 degrees Fahrenheit (462 degrees Celsius). Temperature changes slightly traveling through the atmosphere, growing cooler farther away from the surface. When on the surface, or near it, holding metal items will set you on fire if you do not have the Thermal Suit equipped. Metals will also slowly degrade, or rarely disappear and "melt" away. Wood items will also be set on fire and be destroyed if in the inventory, dropped, or placed. Farther above the surface metals would no longer melt, or set you on fire, but wood will still burn away. The list of melt-able metals includes:
Corrosion -
Corrosion will degrade your metal armor and tools over time, eventually breaking them.
Biomes -
If distinct biomes were to be added to each planet, Venus would include the following:
Venus Mountain
Venus has high mountains, the temperature at the peaks of the mountains is lower than anywhere else, and is the only place where ore can be found, and metal will not melt.
Venus Volcano
There is strong evidence that volcanoes have erupted on Venus in the recent past, but we do not have direct proof. But, that won't stop us from suggesting it, right?
Venus Rift Valley
There are rift valleys as large as the East African Rift (the largest on Earth). A rift is "a large elongated depression with steep walls formed by the downward displacement of a block of the earth's surface between nearly parallel faults or fault systems."
Venus Meteor Crater
There are examples of meteor craters on Venus, even though the surface of Venus has been smoothed by recent lava flows and interaction with the corrosive atmosphere. Because of the corrosive atmosphere, smaller meteors burn up before reaching the surface.
Ores -
Because of the extreme temperatures near the surface these ores only generate in the mountain biome. The ores you can find are below, along with uses that have been color coded for how related to GalactiCraft it really is:
Bismuth
Bismuth could be used to create several random and possibly helpful items.
- Automatic Sprinklers, which I see little use for besides for safety inside your Venus base.
- Electric Fuses, which I also see no real use for besides using it as a red stone that expires after use, and won't run out for power after 7 blocks. It would have to be either cheap, otherwise there would be no want to waste Bismuth on it.
- Precision Wrench, likely the only good use for Bismuth. Bismuth can give certain metals machining properties. This could be an upgrade to the Standard Wrench, and allow players to decide the exact location for input and output.
- Bismuth "sticks"?
Silver
Silver is used in filters to keep bacteria out, and used in photo-voltaic panels.
- Advanced Solar Panels now require silver in the recipe.
- Water Purifier could be made to purify water on future planets/moons and used in crafting machines or advanced versions of older machines that have filters.
- Silver could be used in several small gadgets and electronics.
- Silver tools? Silver armor?
- Silver could coat glass to reflect heat, and be a valuable base building item.
Lead
Lead is very resistant to corrosion.
- Lead pipes could store corrosive stuff, who knows what storing it would be good for.
- Reinforce your outer walls of your Venus base so the blocks don't just corrode away, and all the blocks inside are safe from corrosion.
- Lead tools?
- Lead "sticks"?
Tellurium
I'm truthfully not too sure about this one, sorry for my self confessed lack of successful results in finding information.
- Could be used like Bismuth to make a Precision Wrench.
- Used to make Blasting Caps, to set off primary explosions with a secondary explosion.
Inhabitants -
On the lovely planet Venus, there are several "new" species to be found living here, they seem to have Evolved from several Nether mobs, but look different and don't have oxygen gear:
Nova Blaze - The Nova Blaze sports a purple to blue texture, a larger (and altered) model, and more health. It now attacks by spraying out fire particles in an astric *, then retracts and has to charge back up before sending it out again. Being hit will light you on fire.
Venusian Ghast - The Venusian Ghast is smaller, but faster, has more health, and shoots faster at the cost of explosive damage.
Refined Magma Cube - This is basically a larger Magma Cube that can jump higher with a new attack style. Now doing less contact damage, it causes a small filled circle of fire to appear after dropping to the ground after a jump, not knockback. It could also just shoot a ring of fire particles that set you on fire if you're hit by them. The refined comes from the Magma Cube being tamed by Evolved (Zombie?) Pigmen, and mostly spawning inside and on the outskirts of a Venusian Citadel.
Evolved (Zombie?) Pigman - I lied, this mob does wear oxygen gear. The Evolved (Zombie?) Pigman is slightly larger, like all other evolved mobs are currently, and has more health. Instead of gold swords, they use Silver Axes.
Magma Jockeys - Magma Jockeys are simply Evolved (Zombie?) Pigmen on Refined Magma Cubes. They are not rare, just uncommon.
Evolved (Zombie?) Pigman Boss - The Evolved (Zombie?) Pigman Boss would only spawn in Venusian Citadels, and would be more of a MiniBoss, as several would spawn in the Citadel. They are much larger than the Evolved (Zombie?) Pigman and could possibly use flails to attack, along with charging you.
Structures -
Venusian Citadel(s) are a harder version of the Nether Fortress, and is the location of Evolved (Zombie?) Pigman Bosses.
Machines & Blocks -
There's a problem with building a base on Venus, you can keep the corrosion out with some sort of Lead block exo-barrier, but you can't keep the heat out unless you made the entire base out of silver coated glass. The solution would be to use a Thermal Cooling Controller to lower the temperature so items, or players, don't burn up. To lessen the cost of building a Thermal Cooling Controller, or Oxygen Sealers, in every room without putting holes in walls, we can make Oxygen Vents an actual block called Vent that doesn't count as a solid block and thus oxygen/thermal cooling would pass through it while still keeping the walls look nice, and reducing the cost of having oxygen sealers in each room. (If I'm incorrect about needing a sealer for each room, please tell me so I can change this to purely aesthetic purpose.)