Trashcraft Revolution is a magitech modpack designed mostly for the use of my friends and myself.
The early game is modified through mods such as Cold Sweat and Thirst Was Taken, making it much more difficult to survive - however that quickly becomes easier, as mods like Create and Immersive Engineering make automation and progression easy enough. Applied Energistics 2 makes storage and autocrafting more involved and more interesting.
The End and the Nether are also significantly more challenging, with mods like Better End and Better Nether adding more content to an area that was otherwise relatively empty and boring.
With the help of mods like KubeJS, most recipes have been completely overhauled, delaying progression like Iron and Gold, to encourage the use of other materials.

