Arachnocraft is a expansion mod similar that adds lots of new mobs, items, tools, and a new dimension that is filled with dangerous mobs, precious ores, and structures filled with epic loot.
-Trapdoor Spiders spawn in trapped divots in the ground, and try to kill you if you fall in. They drop 0-2 poison sacs and can be "milked" for a bucket of poison
-Powerful Skeletal Spiders that spawn deep in the nether and the Spider's Den, they drop 1-3 whole bone blocks!
-Phase Spiders, which have the ability to warp and spawn between all dimensions, and drop Unstable String, charged with unstable dimensional energy.
-Longlegs, which spawn in cold biomes and drop their own legs used to create the rod of the staff used to enter the Spider's Den.
-Zombie spiders spawn exclusively in the Spider's Den, and have exposed brains.
-Tarantulas, which are slow, powerful spiders whose exquisite fur can be used to create thick armor.
-Spitter Spiders, which spit sticky webs and you and their spinnerets can be used to create the Web Launcher.
-The Daddy Longlegs, a miniboss that spawns in jungles and drops enchanted spider legs, which don't have a use yet.
-Arachonstructs, which can be summoned by using a Spidric Key on stone or an iron block and attack hostile mobs.
-Stinger Spiders, which are definitely spiders and not any other arachnid, spawn in deserts and drop poison sacs used to poison a diamond sword. They will give you nausea if you get too close.
-Arachnoid Merchants, which are part spider, spawn in underground houses. Trade them a gold block for a Blood Diamond, which you can use to make the mod's custom crafting mechanism.
-Spider Crabs (suggested by Boolyman), which are maybe spiders, spawn along rivers, beaches, and the ocean and are neutral mobs.
-Mosquitoes, Flies, and Bees, which aren't spiders at all, can be found in most places and are currently not useful, but will be used to create bait to summon rare spiders and to befriend them.
Meet the spiders!
First, you need to obtain the Web Spinner to craft many items from this mod. To craft it, you need to find a Arachnoid Merchant deep underground and trade it a gold block for the gem. Then, craft the web spinner with the diamond and some wood (Just use JEI for the recipes) and place it down. To use the web spinner, right click to open the GUI and place your three items inside. Then click the spin button and it will convert into the desired item. Next, you'll need some Unstable String. To get it, slay a Phase Spider (they spawn basically everywhere at night, don't worry). Then you need to get a bucket of poison by right clicking a Trapdoor Spider with a bucket. You can find trapdoor spiders in traps on the surface, just look out for some weirdly textured grass. Use the web spinner to convert two unstable string (on the left) and a bucket of poison (on the right) into two Dimensional String. Due to the poison's potency, the bucket will be destroyed in the process. Next, you'll need to track down some Longlegs in a a snowy or icy biome and kill them to get the spider leg. Finally, you have to use the Web Spinner to convert 3 string into webs, and 3 webs into web blocks. Now that you have all of your materials, it's time to create the portal. First, make the frame out of at least ten web blocks (much like a nether portal). Then craft the Spidric Staff of Entry with six dimensional string, two spider legs, and one web spinner (again, use JEI for the exact recipe). Right click one of the blocks in the frame, and you're done! You can now access and explore the unknowns of the Spider's Den.
How to make the portal:
-Many more spider variants
-Drow elf civilizations
-A new boss- Daddy Longlegs!
-Even... rideable spiders!?!?
In the future:
Disclaimer: Arachnocraft is still in a developmental state, there are still some visual bugs and problems, so please let me know in the comments if you find any bugs (haha get it)
Another thing: Let me know in the commants if you have any cool suggestions or want me to add a new feature.
Also: Arachnocraft was created with MCreator, a free mod creation tool for those who don't have the time to learn java. https://mcreator.net/
Finally: On Mcreator, this mod happened to win Mod of the Week. You can find it here: https://mcreator.net/modification/53033/arachnocraft?page=0