Be the master of laziness... Beat the whole game without purposely attacking or hitting ANYTHING yourself. Use only your minions and sentries. (Except the things which need to be hit, to be "triggered", like the cultists who don't attack first.)
See if you mastered your dodging skills, since your tank-skills of using sledgehammers on worms is obviously perfected. (Funny how most people only actually beat a boss because they obtained some weapon and defenses and buffs that put them ten levels above the boss. Totally would NOT have figured out how to get to those points, without guidance of a cheat-sheet WiKi. I really wish the game, itself, provided all the NEEDED information in the WiKi, so the other, semi-spoiler content, wasn't also "seen" while doing simple research.)
Without instruction, I don't think anyone but a few people would have actually "beat the game". Thankfully, programmers/hackers dove into the game and fans quickly huddled useful information into guides that made every new player, who eventually googles and finds the fan-WiKi, become a master. A master baiter, for fishing. A master craftsman, for weapons and swords. A master cartographer, for excavation and exploration. A master slayer, for bosses. A noob+ architect, for wood+ housing. A master therapist and social-worker, for happiness discounts on goods. But also, a master pain, when it's all over so shortly... 150+ hours later, instead of the 15000+ it would have taken them to "figure it out with what the game provided, or by luck, without actual skill".