RLProgression

60 mods 

RLProgression is a realistic modpack:

• You can't smelt ores in normal furnace. You need multiblock smeltery from TConstruct for that.
• You need to worry about temperature and drinking.
• There are no crazy technical mods. There is only Create that nicely blends with Minecraft style.
• There are realistic trees.
• There are no villages.

Features:

• smeltery = big multiblock furnace
• Plenty of new biomes and better world gen.
• You need flint tools at the start.
• Quests will guide you through your journey.