Principia is described as 'Physics-based sandbox building game. Build and play advanced contraptions, circuiting, minigames, robot adventures and more' and is a Sandbox Game in the games category. There are more than 10 games similar to Principia for a variety of platforms, including Windows, Android, iPhone, iPad and Steam apps. The best Principia alternative is The Butterfly Effect, which is both free and Open Source. Other Principia like games are Fantastic Contraption, Bad Piggies, Toy Box and Crazy Machines.
The Butterfly Effect is a free and open source game that uses realistic physics simulations to combine lots of simple mechanical elements to achieve a simple goal in the most complex way possible. The Butterfly Effect has been over five years in the making.
The classical contraption building game brought into virtual reality in a surreal building experience. Fantastic Contraption lets you create life-sized contraptions as tall as you can reach, then send them whirling, flinging, and trundling off to solve puzzles on the other side...
Canada
From the creators of Angry Birds : all new puzzle game from the PIGs point of view!
Finland
EU
You've found a box full of toys! Toy Box Lite for Android You've just found a box full of toys Grab the toys from the drawer and play with them, each toy has its own features, it is up to you to discover them! Combine toys together to build contraptions, play with the mus.
Physics-based puzzle game involving creation of complex contraptions using over 200 interactive parts, realistic mechanics, global challenges, community sharing, new effects including lightning and lasers, multiple modes, trophies, and achievements.
United States
Contraption Maker is the spiritual successor to the classic machine-building puzzle game, The Incredible Machine. It follows the same concept where you create intricate machines to solve a bewildering array of puzzles.
Incredipede is a puzzle game that celebrates the vast diversity of life in the world. Follow Quozzle, a lone Incredipede with the unique ability to grow new arms and legs wherever she needs them. Transform into a snake, a spider, a horse, a monkey - anything you can imagine.
Canada
Create your own crazy, fun inventions! With the help of the Inventioneers, you can invent fun, creative and often quite weird inventions. A lot of inventions are included in the game, the more you solve the more parts you receive for your own inventions!
SwedenEU
Very similar to Bad Piggies in terms of vehicle construction and physics. Great game.
United Kingdom
Simple Machines lets kids explore the playful side of physics! They can experiment with levers, pulleys, inclined planes, levers, pulleys, inclined planes, wedges, wheel and axles, and screws. A simple and intuitive interface makes it easy for them to discover how they things...
United States
Help old man Pettson and his cat Findus build their amazing inventions! Which of the objects should be included and where do they fit in the machinery? Drag and drop the parts to their right spot and watch the invention go!
SwedenEU
