Algodoo

This is what Ima do today when some game updating
ekgm....
this is little difficult to use thing, so.. *and glitchy for some PC
num0 brake system on carriage
num .del is brake for locomotive(the big thing in right side of train)
arrows:
left - back motor(hold to use), very slow
right - forward motor, use to starting accelerate, on/off as trigger, so don't forget it

num1 - hold to open clamp(idk is true word or not, so you see),
when puzzles make circle put off key, clamp will fixate together a carriages vagons(Ima used bend target)
num3 - toggle engine(very dangerous thing, so be careful )) *just kidding, it'a a script switch-collision engine, but not finallize(actually not optimal for universal use, so that have troubles alike lasers will broke ground if train make flip iccident etc)
*PS: on carriage vagons wheels without axes, so be careful(Ima too lazy for remake a new pilars for wheels)
**thought this weird thing can carry some tank or other vehicle