I heard this guy made it to WWI:

@hyperion @vladislavbelov Hey can you share more info about your hardware ? Depends on how you installed the game. https://gitea.wildfiregames.com/0ad/0ad/wiki/GameDataPaths

I think, this issue is usually caused by the game failing to register the scenario completion properly. A common fix is to restart the game and replay only the final objective, or verify your game files if you’re on Steam. This usually forces the walkthrough to update and unlock the next scenarios. Here is an another thread that is informative also: https://wildfiregames.com/forum/topic/73619-solved- letting agents dagenham-tutorial-map-woman-overlapping-stone-mine/  

These 0 A.D. screenshots look incredible the graphics, unit details, and environments are really coming together. Love how each civilization feels distinct and historically rich. Can’t wait to see more gameplay footage and build up armies in them!

I love such civilian buildings. They truly enhance the experience.