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A common complaint I hear from my factorio-playing friends is that the game is simply too easy - you just sit in your base, fending off the occasional biter attack, and once you have built some advanced weaponry you move out and bulldoze all enemies in your way. I have attempted to rectify this problem by making a map in which you are forced to constantly battle challenging, if not overwhelming, enemies. A map in which, with the exception of some starting stone and iron, every resource field is guarded by the enemy. Most importantly though, a map in which you are on the offensive from the very first minutes. I have already made one such map, called The Oasis, which received positive feedback. As such, I decided to make another one. Like it's predecessor, The Bay is still a "hardcore" map, but it is significantly easier than the Oasis. For a brief comparison of the two maps look in the tab below.
It's a save file, not a scenario, so put it into your Factorio\saves folder.
The result of a 13 hour play-through are seen in the tab below. I've used no mods in it.