Seesaw — free browser game

Weights of mass 1–4 fall from random positions above the seesaw; each one sticks where it lands and applies torque proportional to its distance from the pivot. Your job is to slide the pivot (the triangular support) left or right with the arrow keys or A/D to balance the torques on both sides and keep the beam's tilt under ±32 degrees for as long as possible. Space starts the game and pauses it during play; R or the Restart button resets everything. The yellow/red gauge at the top shows the current tilt — once the indicator enters the red zone you only have seconds before the beam topples and the game ends. As the beam tilts, the weights on it slowly slide downhill; with enough tilt they fall off the end and give you relief, but relying on this is risky as time goes on. Score = seconds survived; weights fall more often the longer you play, so anticipating the next landing and pre-positioning the pivot becomes critical. Tip: move the pivot aggressively toward the heavy side and let new weights drop on the light side to even things out; don't twitch the pivot when the beam is flat or you'll bias the next landings against yourself.