@Raislin - impressed with your Terraria gaming skills (from flicking through your Twitch recording), a little concerned that so far things are more of an "only tools as weapons" playthrough. But onviously pre-mechanic and I guess that's to be expected for early game, plus hammaxes won't cut it forever! Have you seen
DicemanX's skeltron busting boulder setup? I mean, you got the job done (+ more!), but obviously it wasn't nearly so elegant to watch, or quick.
I wonder if you could have save a lot of effort on your goblin invasion trap, which looked very well executed, nonetheless, but could you not have made one side *just* lava, forcing casters to spawn the other side, and perhaps made the lava on platforms (on water) section on that other side a fair bit smaller (to save barrels)? Also, what did you mean by?:
I thought goblins descended only on the centre 16% of map (around spawn point), so you'd only ever need one goblin grinder...? (Could someone also clarify if spawn goblins will attack a bed based spawn point that's far from centre?) All critique intended as constructive, of course!