Tropico 5
70 Achievements
For Science!
Research all technologies at least once before the year 2005 in a single game
3.9%
How to unlock the For Science! achievement in Tropico 5 - Definitive Guide
Robinworldwide
Note: It's advised to do this trophy in conjunction with the Retro-futurism and the Fundamental Principles trophies.
Start a Sandbox game in the colonial era with unlimited money and no disasters. Build a lot of libraries and/or observatories and make sure there are enough workers for them by hovering over the buildings, selecting them with 
and then hire workers for them. The more libraries and observatories you build, the more research points you will get to research all the technologies. Keep your people happy so that you keep winning the elections and complete the missions to advance to the next era. Also, change the constitution as often as you can to work towards the Fundamental Principles trophy.
If going solely for this trophy there is a faster way to obtain it. Create a Sandbox game with Unlimited cash in the Modern Era, then build loads of Libraries, Observatories and anything else that gives Research Points. If you fully staff, budget and upgrade everything, you should be able to obtain this trophy within 7 ingame years.
Mahtan, Tinuvil
1. To reach World War you will need happiness at 51+ and declare independence. Be sure to have all research done before declare independence.
2. To reach Cold War research all technologies and do the "Treaties quest"
3. To reach Modern Era construct a Space Program or Nuclear Program building.
The easiest way is a very easy game with no money limits on Sandbox started in the "Colonial era" Build a few things so people don't complain and add lots of libraries, import workers for the libraries, then research all technologies. You best friend is the observatory (on max money and max researchers they yeld 200 RP).
With 2 Libraries and 4 Observatories I was able to get to the modern era by 1948. Built a Science Lab and another 4 Observatories and concluded this by 1996 If you are still struggling try issuing the "Stem-Cell Research" and "Global Research Initiative" Edicts.
Gleylancer
It doesn't seem to be possible to unlock this achievement during the campaign. Start a sandbox game on any island, set difficulties to very low, enable unlimited money and start with the colonial era. Build a few things so people don't complain and add lots of libraries, import workers for the libraries, then research all technologies. Get your happiness to 51+ and go to the world war era.
In the world war era, keep researching all technologies, then do the treaties quest to advance to the cold war era. Now, research all new technologies and construct a space program to advance to the modern era. Start research of the 9 remaining technologies and complete them before 2005. Use lots of Science Labs to speed things up.
Ronan
stratege.ru
stratege.ru
After loading, we build a Nuclear Power Plant, a Dry Dock and several additional ports (I only had 4). In the Dry Dock we upgrade the Shipbuilder, which gives us an additional ship to each port.
At the same time, in Trade routes (R2 + Triangle) we are looking for an offer to import uranium and assign all available ships to this contract.
We are building 15 Scientific Laboratories and one Embassy. We hire foreign specialists in all Scientific laboratories and at the Nuclear Power Plant.
We issue a decree (L2 + Circle) Joint scientific projects. After this, the research time is noticeably reduced.
We make sure that the Nuclear Power Plant has enough generated energy, and that all the places in the Scientific Laboratories are occupied. And we launch new research in a timely manner (L2 + Cross).
New time in the sandbox with unlimited money
We build a road, 30 observatories, improve them and hire all foreign specialists
We set it to maximum acceleration, and just scroll through the observatories, because... there is no infrastructure, they run away or die of hunger... but these are minor things...
Each technology is 3 months, before the first elections you will already receive a trophy (1992).