Hahah, I was playing on a new offline world with a bunch of floating islands and I somehow turned the difficulty up to hard. I was going to show up here and complain how annoying it was to fight dozens of creepers every night as they try to invade my floating, almost-self-sustaining island.
But then I turned the difficulty down and it is considerably better.
Don't I feel silly!
But then again I have like 24 units of gunpowder and several large craters, so it's not all that bad.
Does anyone remember when I said this? Slash care?
Turns out it was always at normal, or the difficulty settings only work when you gen new worlds. Still about 5 creepers, 4 skeletons, and probably a dozen zombies a night camp outside my base. I've taken to putting the entrances near bright sunny areas - far from the shadow of my island - and lining the pathways with glass to monsters can see me and follow me into the light. It helps a bit, until a creeper destroys my door.
One day while preparing for a lava run, a creeper blew up and opened an underground passageway. I followed the passageway around and found it connected to an exit across from my base, which had a fork in it. I followed the fork down and discovered several underground springs and loudly grumbling zombies and skeletons. I mapped out the spring area as best I could - I ran out of torches - but throughout I could hear zombies in the background. Wondering where they were, I took some of the gunpowder I'd collected from my nightly defences and made a block of TNT, which I stuck nearest to where the grumbling was.
Well, that was a terrible idea. I had opened up some sort of terrifying pseudo-dungeon. At least 6 each of skeletons, zombies, and creepers were waiting for me on the other side. I died horribly. I made a quick run back to collect my stuff, made some leather armour, and returned. Died horribly again. Made another run to collect my stuff, and then tried it one last time with pork this time. Died again.
Grumbling loudly at my ill fortune, I equipped myself in iron armour and grabbed an iron sword, my bow and arrows. I ventured back down into the cavern, and bombarded the enemy with arrows and pelted them with swordblows from across my hastily constructed dirt battlements. Eventually, the monsters began infighting, and the creepers assisted me, destroying some of their own forces (but destroying my battlements)
I ventured forth into the newly open cavern and discovered enough coal and iron to recoup all my losses. I placed as many torches as I could around the area, hoping to discourage whatever mechanism was causing them to spawn in such large numbers.
Eventually, out of torches, I stumbled into a last nook. Mossy cobblestone - I had stumbled into a dungeon. But it wasn't exposed to me - I couldn't go in and destroy the spawner... I placed as much dirt around the area as I could to discourage future spawning. Judging from what I had last seen in that nook, it was a skeleton spawner.
I returned back to the main section of my pseudo-dungeon, and noticed a small hole with a stone in it. Not having brought any pickaxes on this trip, I wondered what had caused it. Suddenly, a creeper fell from the sky, and promptly exploded.
Presumably there was a creeper spawner above me, too, since there were no obvious breaches in the ceiling.
Wounded but alive, I retreated. I would need additional armour and torches, as well as a pickaxe or three, to make further headway into the cave.
I was getting kind of ticked off at the game when I had lava issues (If you place a lava spring on an elevated block - the one you're standing in - it can be difficult to recollect it. Then it kind of stays as a pseudospring - uncollectable but still a lava source - and floods the rest of your house with lava. Also if you place cloth next to magma it burns.) but I think the above experience is amazing enough to counter those.