A modpack that tightens the gameplay of Space Age, removing shortcuts, adding interesting challenge, and letting Space Age mechanics be more like themselves. Each planet has many variations: nights are darker, demolishers are more numerous and move faster, lightning can hit locomotives, random variance is added to biorecipes, nuclear reactors no longer work on Aquilo, and more.
Collections of mods with tweaks to make them work together.
You can discuss this modpack on Discord.