I thought this game was well known but I haven’t seen almost any mentions of it recently. It’s very weird for a FOSS enthusiast not to advertise one of the best open-source games of all time so here I am trying to make it spoken about again.
Disclaimer: this game may be addictive for some individuals. Player discretion is advised. If you notice any symptoms of addiction while and/or after playing the game, stop playing immediately and consult with your doctor. Untreated gaming addiction may result in severe consequences such as digestive disorders, social behavioral disorders, loss of job, and depression.
Well not really difficult, after you realize that you can put down buildings while on pause. The first few levels are easy tower defence… Later on you can win every level by building mid tier flying robots (iirc). Still… Great game!