This guide is split between 2 parts, if you're if you're looking for an achievement not featured in this part, view the other part:
Carousel - Incinerate an elder chicken
You'll need to build an incinerator, take an elder hen, and then pop it in the incinerator. I know, I know how could you.
You... Monster! - Send an adorable chick to a fiery end, the same place you're now destined to go
I don't think I need to say anything else about this one...
Diversification - Have at least 10 types of largos on the Ranch
This one will take a bit of work to get done. You need to get these largos somewhere that they're not going to have tarr issues by eating another slimes plort after already being a largo so don't feed them again after they're a largo. Then just work on creating them from different combos until you get it. Even if you do a pink slime combined with every other type they'll all count as different ones so it really isn't THAT difficult to do.
Six Pack - Have at least 6 different types of slimes in the same corral
You just want to make sure not to feed any of these, shove them all into one corral, and you'll get it fairly easily.
Burstin' at the Seams - Put at least 50 units into each slot of a fully upgraded silo
So of course we first have to place down a silo, upgrade it fully to get all four sides of storage, then fill it with whatever you have a lot of. Whether that be food types, or plorts, as those are the easiest to get a lot of, just fill them up to 50 for every one of those and you'll get this achievement.
Hat Trick - Obtain at least 3 gold plorts from a single gold slime
This one can be a bit tricky, but once you know what to look, and listen, for it gets pretty simple. You just have to get a little lucky. First you'll want to get up to level 22 of the 7Zee Rewards Club where you unlock golden sureshot. This makes it to where you always get 3 golden plorts from a slime when you shoot food at it.
Then you can either look around for a random golden slime, or find one of the slime vaults that are sitting in each of the biomes. There are a bunch of guaranteed golden slimes in those.
One Person at a Time - Join the 7Zee Rewards Club
Simple enough, just go up to your house and you can pay for the membership in that menu.
Color Me Impressed - Use chroma packs to change the color of the ranch house, tech, and vacpack
You'll unlock these periodically as you go up the ranks, and you'll just need to put some kind of color combinations on each of those to get the achievement.
Mint in Box - Purchase at least 10 different types of slime toys
You'll unlock these throughout the ranks and you'll be able to place down a vending machine to buy them. Just buy 10 different kinds and you'll get this one.
Controlling the Chaos - Constrain more than 15 slimes in your vac stream at once while on the range
This is pretty simple as well. You'll want to suck in a large amount of slimes first, maybe 30 or so, and then shoot them all into as enclosed of an area as possible. Either a sort of corner of the map, inside of a cave, whatever. Then just start sucking them up and you as long as you have 15 within your vacuum's range you'll get the achievement.
Pool Party - Fill a pond on the Ranch with at least 5 different types of slimes
So first make a pond somewhere, or use the one built into one of the expansions, and you'll want to first have a water slime sitting in there since he'll stay put. Then grab one slime from four different other types. Take those to the pond and shoot them in there for the achievement to pop.
Rush Challenger - Reach at least 10,000 newbucks in Rush Mode
Rush Champion - Reach at least 35,000 newbucks in Rush Mode
Rush Plortmaster - Reach at least 75,000 newbucks in Rush Mode
I'm not going to go in depth on this one, but I made a video going over the strategy on how you can get all of these in a specific video guide linked below, or from the written version also linked below.
Onward... to SCIENCE! - Fabricate your first Slime Science gadget
Bea the Builder - Fabricate 35 Slime Science gadgets
Never Stop Creating - Fabricate 100 Slime Science gadgets
This is done by going over to the science lab building, shooting materials in, and then using the terminal to make different items. And there's a lot of different kinds of things to make.
Best of the Worst - Place a tarr on the #1 Slime Stage
The stage is one of the gadgets you can make, then you'll just need to go find a tarr slime, place down the stage, and put that tarr on it.
She's on Fire! - Score 50 points in a single game of slimeball
This is another slime gadget and what I found to be the easiest way to take care of this was to make the slimball hoop, put it in the grotto area, and then sit on a ledge with a bunch of pink slimes. And shoot those into the hoop when it comes around to you. Just shoot them as quickly as you can to get as many as possible and that should get you most of the way there. At that point you can just jump around to wherever you need to go to shoot into it, or wait for it to spin back around and do the same thing.
The Hunter Has Become... The Other Thing - Snare a Hunter Gordo
You'll need to place down snares until you end up getting a hunter gordo in it. It shouldn't take too many tries to make this happen. There's a specific spot you can put one to seemingly guarantee that you get a hunter gordo right outside of the ranch as well.
Pro Style - Complete the Slimepedia
That means you'll need to get every single slime, food, etc. entry added in your slimepedia. I can do a full video going over all of these and their locations if you guys want, just let me know down in the comments. For now I've got the list of everything included in the slimepedia, but by this point you should have nearly everything other than maybe a slime or two, or maybe a food item.
You'll also want to be making drills, pumps, and apiaries throughout your playthrough in order to get those additional items exclusive to those tools.
Basic Player Controls
Vacpack: Vac-ing and Shooting
Vacpack: Vac Tanks
Vacpack: Health and Energy
Ranching Basics: Corralling Slimes
Ranching Basics: Feeding Slimes
Ranching Basics: Plorts and the Plort Market
Slime Science: Basics
Slime Science: Gadget Mode
Pink Slime - Found Everywhere
Rock Slime - Found Everywhere
Tabby Slime - Found Everywhere
Phosphor Slime - Found Everywhere at night
Rad Slime - Exclusively in The Indigo Quarry
Boom Slime - Found in the Moss Blanket, The Indigo Quarry, and the Glass Desert
Honey Slime - Exclusively in The Moss Blanket
Puddle Slime - Found Everywhere in ponds (Only in the Ring Island in The Dry Reef)
Crystal Slime - Exclusively in the Cinder Grove and Ash Isle in the Indigo Quarry
Hunter Slime - Rarely found in The Moss Blanket and The Glass Desert
Quantum Slime - Found in The Ancient Ruins and The Glass Desert
Fire Slime - Found during Solar Anomalies in The Glass Desert
Dervish Slime - Exclusively in The Glass Desert
Tangle Slime - Exclusively in The Glass Desert
Mosaic Slime - Exclusively in The Glass Desert
Glitch Slime - Exclusively in The Slimeulation
Saber Slime - Exclusively in the Wilds. The are Exclusively Largo's Added in Patch 1.1.0
Quicksilver Slime - Exclusively in The Nimble Valley Added in Patch 1.2.0
Gold Slime - Found Extremely Rarely Everywhere
Lucky Slime - Found Extremely Rarely Everywhere
Largo Slimes - When a normal slime eats a plort that is unlike its own.
Gordo Slimes - In predetermined spots throughout the game and Caught on a Gordo Snare
Party Gordo - Found Somewhere only on Friday, Saturday, or Sunday. Added in Patch 1.2.2
Feral Slimes - Slimes that are not fed, when a Hunter Largo gets created, or agitated
The Tarr - When a largo eats a plort that is unlike its two main types
Carrot - Found Everywhere
Oca Oca - Exclusively in The Indigo Quarry
Heart Beet - Found Everywhere except in The Moss Blanket
Silver Parsnip - Exclusively in The Grass Desert
Odd Onion - Exclusively in The Indigo Quarry
Gilded Ginger - Found only once per day Extremely Rarely in The Glass Desert Added in Patch 1.0.1
Pogofruit - Found Everywhere
Mint Mango - Exclusively in The Moss Blanket
Cuberry - Found Everywhere except The Indigo Quarry
Phase Lemon - Exclusively in The Ancient Ruins (Shoot any kind of fruit into the tree to harvest a Phase Lemon)
Prickle Pear - Exclusively in The Glass Desert
Kookadoba - Exclusively in the Wilds Added in Patch 1.1.0
Chickadoo - Found Everywhere
Hen Hen - Found Everywhere
Roostro - Found Everywhere
Stony Chickadoo - Found Everywhere
Stony Hen - Found Everywhere
Briar Chickadoo - Exclusively in The Moss Blanket
Briar Hen - Exclusively in The Moss Blanket
Painted Chickadoo - Exclusively in The Glass Desert
Painted Hen - Exclusively in The Glass Hen
Elder Hen - After producing 6 Chickadoos
Elder Roostro - After siring 18 Chickadoos
Spicy Tofu - Exclusively in the Wilds You can Trade 3 Kookadoba for one Spicy Tofu at Ogden's Retreat Added in Patch 1.1.0
Primordy Oil - Everywhere with a Pump
Deep Brine - The Dry Reef with a Pump
Silkey Sand - The Glass Desert with a Pump
Spiral Steam - Everywhere with a Pump Uncommon
Lava Dust - Everywhere with a Pump Rare
Buzz Wax - Everywhere with a Apiary
Wild Honey - The Moss Blanket with a Apiary
Pepper Jam - The Glass Desert with a Apiary
Hexacomb - Everywhere with a Apiary Uncommon
Royal Jelly - Everywhere with a Apiary Rare
Jellystone - Everywhere with a Drill
Indigonium - The Indigo Quarry with a Drill
Glass Shard - The Glass Desert with a Drill
Slime Fossil - Everywhere with a Drill Uncommon
Strange Diamond - Everywhere with a Drill Rare
Echos - Exclusively in The Ancient Ruins (Can be extracted using all extractors and a Echo Net)
Slime Toys - Can be bought by reaching rank 8 and rank 10 in the 7Zee Rewards Club, and can be found around the map
Corral
Coop
Garden
Silo
Incinerator
Pond
Plort Market
The Overgrowth
The Grotto
The Docks
The Lab
Odgen's Retreat Added in Patch 1.1.0
Mochi's Manor Added in Patch 1.2.0
7Zee Rewards Club
Chroma Packs
The Ranch
The Dry Reef
The Indigo Quarry
The Moss Blanket
The Ancient Ruins
The Glass Desert
The Wilds Added in Patch 1.1.0
Nimble Valley Added in Patch 1.2.0
The Slime Sea
Slime Keys
Slime Science
Refinery
Fabricator
Blueprints
Extractors
Utilities
Warp Tech
Decorations
Curios
Doors Like These - Discover where Hobson's journey ended, and started once again.
For this you'll need to go to the end of the glass desert and get into last room/area of the map where you'll find another note left by Hobson. Pick that up and you'll unlock the achievement.
The Adventure Continues! - Complete Adventure Mode and set out for what's next.
In order to get this you'll need to be reading the letters you're getting throughout the game, find Hobson's last note, and then sleep for another day or two to get the last letters out of the way. Once you get to the very last one you'll be able to get this achievement.
And there you go! 100% of the achievements in Slime Rancher. If you found the written guide helpful be sure to like/favorite it and drop a comment down below.
If you found the video guides helpful be sure to also like, comment, and subscribe over on my YouTube Channel.
I also cover the achievement/trophy guides for many other games so whether it's on Youtube, our website, or Steam check out some of my other guides to help you 100% more games.
Thanks for reading/watching!