Back in 2012, I stumbled across a game called TowerClimb [official site]. It had already been in development for a couple of years and, at the time, a beta had been made available to anyone able and willing to cough up five dollars. That payment entitled the purchaser to a copy of the finished game when it was ready for release. Yesterday, TowerClimb arrived on Steam and although I’d forgotten the name, I remembered the game within a minute of playing. Its randomised vertical levels are as unpredictable and varied as I remember.