Two Point Hospital

If you are having a problem with getting 3 stars in Chasm 24 hospital because you bought all the plots (to get other achievement), here is some tips how to get back on track with your hospital and avoid endless disasters:

1. Make sure all your robo-janitors have only 'repairing' task allowed in task manager. Turn off everything else for them (even though they are good at something else).
2. Hire up to 30 regular janitors (if you bought all plots) and try to get at least 75-80% of them with repairing skills so they do fixing of machines and stabilizers more effectively (don't hire 'unmotivated' ones obviously since their speed is utmost important here). Also don't forget to train your janitors with 'Motivation', 'Maintenance' and 'Stamina' skills, but not too many at a time (I had 2 training rooms with 3 seats each, but only 1 was for janitors/assistants).
3. Every time disaster occurs (happened to me once in about 1-2 game years), if you are running on fast time speed, slow it down to normal, go through all the stabilizers and manually request janitor to come and fix it (even if it's just a little bit worn). That will ensure it won't start chain reaction of disasters (one disaster wears off other stabilizers that trigger next disaster and so on). In this exercise you may ignore Ghost and Epidemic stabilizers since they don't really trigger machine damaging disasters.

And also don't forget to restart the game to get SuperBug network back online ('Bug' icon in top right corner should have blue background) shortly before you are going to get 3rd star (and total of 72nd star) to get this achievement right away. That applies to almost every achievement in this game - in order to get it you have to fulfill requirement with SuperBug network online.

P.S. If you forgot, that's okay, you will get this achievement when you get another star in any other hospital with SuperBug network online. Just be aware of 3 special achievements that you have to get from the first time, otherwise you will have to restart the career in order to get them (I haven't checked, but that what people are saying in the different forums): Researcher, Psyche and Surgeon level 5.