Admittedly I thought this game was pretty trash and I would have deleted it ages ago, but achievements make my brain happy and so I am gonna try getting them all, this is a simple guide of what I've learned to help you out.
Notes:
1. Tips for achievements that have multiple levels will be on the lowest level. (e.g. sell 100, sell 1000, the tips will be on the sell 100 achievement.)
2. If I say an achievement is gotten at the end of a year it means you get it after exams and the result screen during the building phase.
3. Deleting the game will wipe your progress on achievements because they are linked to the in game achievements! Watch out!
4. You can assume all achievements are across all school files unless stated otherwise (or its an achievement that you can do in the menus like linking a cafeteria with the logistics menu)
5. If you need help this is my school, could someone tell me if loading it works for getting achievements? I tried to test it, but it seems like loading a world cancels your ability to get achievements which sucks a ton, if that is true loading this map will most likely not get you anything. I will leave this here if you need help or inspiration for how to build an efficient school, although I'm sure you can do better.
https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3437557628

This is not an official section, but as you may have noticed there are a lot of achievements related to hiring and firing so I just wanted to make a quick section explaining a couple tricks. Most of the hiring achievements are just basic hire a certain number of people, we can actually exploit the save system to get this quickly, make a backup of your current school (ideally with a ton of money in the bank) then load this save and just spam hire, once you're out of money completely fire everyone and reload the save (without saving obviously) and do the same thing again until you get all the achievements.

You can quickly fire a ton of people by going into the staff menu (click the staff icon, not the teachers) and checking the box that says mass firing, this removes the "are you sure?" box from appearing for faster firing, you have to research this first! its on the lawyer branch

Freshman: Finish 1 School Year (gotten at the end of the year)



Sophomore: Finish the 2nd School Year



Junior: Finish the 3rd School Year



Senior: Finish the 4th School Year



Freshman Router: Make 5 routes in one school, just spam them until 50. If you don't know, routes are methods of micromanaging your staff to get them to survey a specific area. To get routing research either Janitor routing, worker routing or monitor routing and then click the logistics menu on the bottom left. Then to build a route click one of the options (janitor, worker, monitor) and click add route, place the pins and when you are done click complete route and place the final pin. This is one route.
Sophomore Router: Make 10 routes in one school



Junior Router: Make 25 routes in one school



Senior Router: Make 50 routes in one school



Freshman Zoner: Create 5 zones in one school, you can just spam these as well, zones are how you identify the use of a room on the bottom left of your screen


Sophomore Zoner: Create 10 zones in one school



Junior Zoner: Create 25 zones in one school



Senior Zoner: Create 50 zones in one school



Easy Mode: Finish one year in easy mode, make a new game to do this



Normal Mode: Finish one year in normal mode



Hard Mode: Finish one year in difficult mode



Insane Mode: Finish one year in insane mode



Abandon School: Get a game over from every student dropping out, this one was super difficult, I found the best way is to just make a new game and start with pretty much nothing so the students get annoyed and drop out

All Boys: Finish a school year with an all boys school, when creating your school at the start select all boys


All Girls: Finish a school year with an all girls school



Bachelor of Scenarios: Complete one scenario, scenarios are a special mode where you are restricted to a to-do list, starting school and budget. However, this game mode sucks because you don't even get grants. Be prepared to penny pinch HARD, make sure the first thing you do is get teachers and then start the year, once your in the positive you can begin setting up to make more money and going through your to-do list, I also recommend selling any useless items at startup and firing workers.
Master Of Scenarios: Complete 3 scenarios



Doctor Of Scenarios: Complete 6 scenarios



Basic Builder: Finish the basic education grant 5 times, should get this while doing other achievements, you will have to start 5 new schools in total


Fashionable: Use a different uniform, change the uniform when making a new school



Eventful days: Complete 1 event, events are the random popups, just accept it and do it






Ignorance is bliss: Ignore an event



Fully Booked: Schedule 3 activities in your calender, hover over the date and click select activity, then plan for 3 days (not related to events)


Small School: Have a school with 120 students, you can just grind for this by playing a school normally, if your struggling make a new school in easy mode and focus on making sure students are learning and not getting sick. Don't forget you have to accept admissions during the build phase to get more students.
Medium School: Have a school with 360 students



Large School: Have a school with 640 students



Skeleton Crew: Have only one worker, one cook, one monitor, and one janitor



Overstaffed: Have 10 worker, 10 cook, 10 janitor, 10 monitors



Say My Name: Change a character's name, to do this click on a character and then click their name in the box, then write the new name

3-Ply: Have 3 toilet zones that use 3 ply toilet paper, to change the ply go to reports, then click toilets, then the arrows






School Stinks!: Students pee 100 times in all your schools, im not actually sure about this achievement, but I assume its in reference to using the bathroom


Dirty Jobs: Throw out 1000 trash bags, you won't produce any trash bags if you have a recycling facility so make sure you disable that if your grinding for this, also dont forget you need enough space in your garbage zone

Green Jobs: Make 500 recyclable bags, you will need to research and build a recycling facility to get this


Outdoor Toilet: Have a student poop in the bushes, just dont make a toilet and have bushes accessible


Peeing in the Bushes: Have a student pee in the bushes, same as previous



War on Dirt: Clean 1000 spots of dirt, youll get this over time just have janitors and paved floors


War on Pee: Clean 1000 spots of pee, this will happen over time, i think destroying bathrooms will cause there to be more spots


War on Poop: Clean 1000 spots of poop

So most of these are just reach a rank, grind out the game to climb ranks, make sure you don't ignore events, you have good teachers and your school is clean, you'll get it eventually. Gotten at the end of the year.
Seed League: Reach rank 900



Algae League: Reach rank 700



Fern League: Reach rank 500



Mushroom League: Reach rank 250



Conifer League: Reach rank 10



Ivy League: Reach rank 1



Seed League Plus: Reach rank 900 with 400 students



Algae League Plus: Reach rank 700 with 400 students



Fern League Plus: Reach rank 500 with 400 students



Mushroom League Plus: Reach rank 250 with 400 students



Conifer League Plus: Reach rank 10 with 400 students



Ivy League Plus: Reach Rank 1 with 400 students



Counseled: Get an A in Deliquency, having multiple counsellors and monitors is the most effective way of doing this, also having the monitors on patrol


Pedigreed: Get an A in graduate degrees, this is based on the grades of the students and their ability to get into university


Top marks: Get an A in passing rate, this is based on the pass rate of your students, the best way to increase this is better teachers and counselling


Spotless: Get an A in cleanliness, this is based on the cleanliness of the school, this was hard for me, you'll need a lot of janitors and a lot of routing for the janitors


Trending School: Have 60 students interested in enrolment, this will increase with your rank


Popular School: Have 100 students interested in enrolment



Famous School: Have 170 students interested in enrolment



Rival Schooled You: Have the rival school beat you in rank at the end of the year, just do poorly so you get surpassed


Rival Schooled: Beat the rival school in rank at the end of the year, get high ranks and you will eventually get it

Bachelor Department: All departments have at least one teacher with a bachelor's degree (one medal)


Master Department: All departments have at least one teacher with a masters degree (two medals)


Doctor Department: All departments have at least one teacher with a doctorate/PHD (three medals)


Special Department: All departments have at least one special teacher (silver medal)



Bachelor Of Research: Research 5 things, you need a principal to research, click the current research button on the top to open the research tab and click what you want to research

Master Of Research: Research 15 things



Doctor Of Research: Research 30 things



Bachelored: Hire 200 teachers with bachelor degrees(one medal), see "Hiring and Firing" for tips


Mastered: Hire 300 teachers with master degrees (two medals)



Doctored: Hire 100 teachers with doctorate/PHD degrees (three medals)



Specialed: Hire 100 teachers with special degrees (silver medal)



Teacher's pet: Have 10 favourite students, you can favourite a student by clicking them and clicking favourite


Tough Love: Use Discipline student 10 times, you can only discipline once per vice principal you have and once per student, you have to click on them and favourite them to discipline them

Confidence Booster: Use Encourage student 10 times, you can only encourage once per vice principal you have and once per student, you have to click on them and favourite them to encourage them

The Fox: Use Review 5 times on teachers, to put a teacher into review you have to open the teacher menu, click on the pool, click on the blue arrow next to a teacher on the bottom to put them in the pool, then click on the teacher in the pool and click train, this will open the menu with options for both review and seminar which trains the teacher, do this 5 times







The Hedgehog: Use Seminar 5 times on teachers, same instructions as the last achievement


Selective Staffer: Clicked the find more button in the teacher's menu 50 times, you'll need a bit of money to do this

Bachelor of Delinquency: Set 100 delinquents straight, you need a counsellor to do this (detention and other types of punishment do not progress this achievement!), the 1000 achievement is probably the longest I just leave the game afk with a massive school, you can also get grants that invites bullies to the school, also more monitors means higher chance of catching people who need counselling. Also don't forget to assign them to counselling through the delinquency menu by clicking on the types of delinquency and using the arrows to move them into counselling. The best way to grind for this achievement I found is playing the scenario "A better future" which has a massive increase in delinquency rates.

Master Of Counseling: Set 500 delinquents straight



Doctor Of Counseling: Set 1000 delinquents straight



Bachelor Of Scolding: Scold students 100 times, the principal and vice principal will scold when a student is caught doing something wrong, just have a lot of monitors and a couple vice principals to speed up the process

Master Of Scolding: Scold students 500 times



Doctor Of Scolding: Scold students 1000 times



Bully Breaker: Catch 20 bullies, have monitors and wait, delinquency increases with difficulty


Bully Bully: 100 bullying events in the school, also time based, increases with difficulty



Free Labor: Have 10 students cleaning toilets, you have to research this then go to the reports, delinquency and assign them to cleaning toilets by clicking the types of delinquency and use the arrows to move them into it

Goon Patrol: Kick out 10 goons, to kick out a goon you need to have a monitor and click on them and then click kick out, difficulty increases their arrival


Prison Architect: Assign 10 classrooms as detention rooms, you need to research detention, then go to reports, classrooms, and click the detention check mark on 10 classrooms, I also recommend removing the checks once you get the achievement since you do get charged for each detention room

Shut Up!: 100 total rowdy events, this will happen naturally, increases with difficulty and number of students


Too Cool For School: Have 100 truancy events, will also happen naturally

Bachelor Of Downsizing: Fire 100 staff (this is staff and teachers across all schools) see my section on "Hiring and Firing" for tips


Master Of Downsizing: Fire 500 staff



Doctor Of Downsizing: Fire 1000 staff



Bachelor Of Employment: Hire 100 staff (this is staff and teachers across all schools) see my section on "Hiring and Firing" for tips


Master Of Employment: Hire 500 staff



Doctor Of Employment: Hire 1000 staff



Bailed Out: Get bailed by the government, run out of money/go into debt and the government will give you a loan at the end of the day, you can do this by losing a ton of money or through events

Cashflow Negative: Have a cashflow lower than 3000$ a day, just hire a ton of people if you are struggling with this


Cashflow Positive: Have a cashflow higher than 3000$ a day, grind a bit in easy mode if you are struggling with this


Balanced Budget: Have a cashflow around 50$ (50 -> -50), meaning you have to be between these numbers, you can get close to this by hiring random janitors


Good Credit: You will have to grind out the game quite a bit before you are eligible for this big of a loan, also you need an accountant


Green Energy: Make 3000$ a day from electricity, you'll need a ton of turbines for this. Also important note, you don't actually make surplus from windmills meaning you also have to be spending 3000$ a day on your electricity, I just bought a ton of computers until I hit it (you get the achievement at the end of the day)

Take a loan: Take out a loan on the loan tab, you need an accountant for this (research and hire them)


Paid a loan in full: Pay back a loan by clicking the loan tab and using the slider



School Closure: Get a game over from running out of money, this one is a bit elaborate you can try doing it with the scenarios, just have awful money management, have the government bail you then waste all the money you got

Bachelor Of Repairs: Repair 10 items, objects will randomly break over time, you have to click on them when they turn yellow/red and click repair to fix them


Master Of Repairs: Repair 50 objects



Doctor Of Repairs: Repair 200 objects



Botanist: Build 1 Maple, 1 Sakura, 1 Bamboo, 1 Myrtle, and 1 Spruce tree in 1 school, you will need to research landscape architect to unlock them, then go to build > outdoor


Building Barriers: Build 10 different wall types, research school design to unlock them



Grounded!: Build 10 different floor types, research fancy floors



Fenced in: Build 100 fences



Central Common Room: Have a common room linked to 12 different classrooms, you have to research zone link, then click logistics on the bottom left, click common area link to link classrooms to the common area, you can also just have 12 classrooms and only 1 common area and it will automatically link them

Coffee Snob: Have 1 staff lounge and 1 faculty lounge set to the espresso coffee option, you will have to research a bit of the teacher advancements as well as build a separate faculty and staff lounge. To change this go to the reports tabs and click on lounges, then use the arrows to change the coffee to espresso

Freshman Builder: Build 100 objects



Sophomore Builder: Build 300 objects



Junior Builder: Build 600 objects



Senior Builder: Build 1000 objects



Mass Transit: Have 300 students assigned to the school bus, you can do this by researching buses, building a bus stop and then going to bus usage in the reports tab and assigning 300 students to it (you can turn it off after you get the achievement)

Office space: Have at least 1 lawyer, accountant, vice principal, and counselor’s office in 1 school, you will have to research each one, hire them through the staff tab


Parks And Recreation: Have at least 1 field, track oval, swimming pool, basketball court, and school park in 1 school, you will have to research each one, use the zones tab to build them

Cafeteria Manager: Earn 10,000$ from cafeterias, build cafeterias and wait for the students to buy


Cafeteria Owner: Earn 50,000$ from cafeterias



Cafeteria Tycoon: Earn 100,000$ from cafeterias



Vending Machine Manager: Earn 10,000$ from your vending machines, place a ton of vending machines, also destroying cafeterias forces students to buy more


Vending Machine Owner: Earn 50,000$ from your vending machines



Vending Machine Tycoon: Earn 100,000$ from your vending machines



Central Cafeteria: Link 1 cafeteria to 12 or more classrooms, you need to research zone link and then go into logistics and connect your cafeteria to 12 classrooms


Central Kitchen: Link 1 kitchen to 3 or more cafeteria, you need to research zone link and then go into logistics and connect your kitchen to 3 cafeterias, you might need to build fake cafeterias to quickly get this

Dishwasher: Wash 1000 plates, your cooks will do this over time



Feeding Program: Cook 1000 meals, your cooks will do this over time, you do need to have a cafeteria to serve the food


Top Chef: Have 3 kitchens using superior ingredients, first of all you need 3 different kitchens and you need to research nutrition planning. Then go to report > kitchens and use the arrows on the ingredients column to switch the ingredients to superior

Emergency Room: Called an ambulance, you need to research health is wealth first, then go to reports, then to clinics, then click the call ambulance button









Epidemic: Have 1000 sick students throughout your career, this will happen over time, you can speed this up by playing the scenario "Flu Season"


Team Hospital: Cure 100 students, you need a clinic to cure students, to speed this up try playing the scenario "Flu Season"


Team Hospital 2: Cure 500 students



Team Hospital 3: Cure 1000 students

And with that you are done! Thank you so much for the support by using this guide please like it :D, if you have any other questions just comment it I will hopefully respond in a couple days.