History GoodBadBugs / Terraria

* The differences between water and air pressure is ignored, so you can dive 300 meters underwater, dig a small tunnel, then dig up a bit into a roomy cavern, and the cavern will not get wet at all (to get the idea, imagine a J-shaped test tube that can fill all the way up on the right side without the left side overflowing).
* During the Blood Moon, zombies can bash doors open, but only inward. Putting something that occupies the space but doesn't have collision (a cloth banner or another door, open in the opposite direction, for example) will make the door impossible to open inward, meaning that you can come and go freely but the zombies won't get in. It should be noted, however, that goblin peons don't have this problem as they bash doors ''completely off the hinges''.

* By placing three wooden platforms in front of the Lihzahrd Temple door and hammering all three so they face downwards, then pressing down when in front of the door, one will slip past the door and enter the temple without needing a key. Summoning the Golem still requires Plantera to be defeated, however.

* Fluid dynamics are completely broken, allowing you to create automated generators that create unlimited amounts of lava and water out of thin air, which in turn allows you to mine unlimited amounts of obsidian, which you can then turn into an unlimited number of obsidian skulls, which you can then sell for an unlimited amount of money. Basically, once you obtain a bucket of lava, your wealth is only limited by your patience. The core of the issue is how the game handles the flow of a liquid being split in two. A simple but effective "liquid multiplier" is a pyramid consisting of floating single blocks with space between them, so one block of liquid at the top flowing down gets split again and again and again. At the bottom all those fractions add up to much more than what you started with. It is basically taking advantage of the game code rounding out numbers where keeping precise track of everything is not needed for normal gameplay.

* Fluid dynamics are completely broken, allowing you to create automated generators that create unlimited amounts of lava and water out of thin air, which in turn allows you to mine unlimited amounts of obsidian, which you can then turn into an unlimited number of obsidian skulls, which you can then sell for an unlimited amount of money. Basically, once you obtain a bucket of lava, your wealth is only limited by your patience.
** To explain this in more detail, at the core of the issue is how the game handles the flow of a liquid being split in two. A simple but effective "liquid multiplier" is a pyramid consisting of floating single blocks with space between them, so one block of liquid at the top flowing down gets split again and again and again. At the bottom all those fractions add up to much more than what you started with. It is basically taking advantage of the game code rounding out numbers where keeping precise track of everything is not needed for normal gameplay.

* During the Blood Moon, zombies can bash doors open, but only inward. Putting something that occupies the space but doesn't have collision (a cloth banner or another door, open in the opposite direction, for example) will make the door impossible to open inward, meaning that you can come and go freely but the zombies won't get in. It should be noted, however, that goblins (to be more specific, peons) don't have this problem as they bash doors ''completely off the hinges''.

** To explain this in more detail, at the core of the issue is how the game handles the flow of a liquid being split in two. A simple but effective "liquid multiplier" is simply a pyramid of single blocks with space between them, so one block of liquid at the top flowing down gets split again and again and again. At the bottom all those fractions add up to much more than what you started with. It is basically taking advantage of the game code rounding out numbers where keeping precise track of everything is not needed for normal gameplay.

* Because of how the Slimy Saddle's bounce attack works, it's possible to become invulnerable by repeatedly bouncing on a Target Dummy using a solid block to hold yourself in place and then attack using a wall penetrating weapon.

* Because of how the slimy saddle's bounce attack works, it's possible to become invulnerable by repeatedly bouncing on a target dummy using a solid block to hold yourself in place and then attack using a wall penetrating weapon.

* Prior to the Journey's End update, output pumps produced more liquid than what the associated input pump took in. While this made for easy liquid duplication and automated filling of fishing spots, it also made it ''very'' for waterfalls and moats to overflow and wreak havoc with floods.

* Because of the slimy saddle's bounce attack works, it's possible to become invulnerable by repeatedly bouncing on a target dummy using a solid block to hold yourself in place and then attack using a wall penetrating weapon.

* A more subtle one exists for fishing in single player. Turn auto-pause on and cast a line, then open the inventory, take a single item out of the inventory and right click to drop with the cursor in a place you would cast and then close the inventory. You'll not only toss the item but the short animation of discarding an item is the same as swinging a rod, causing two more lures to be casted into the water. This can be a great way to fish a lot of items in a short amount of in-game time and you can wind up catching multiple quest fish that could be stored for later.

* * With [[{{MenuTimeLockout}} autopause]] turned on, you can swing your sword and pause in the middle of the animation to click a potion up from your inventory, unpausing will consume it, ''even if you have the Potion Sickness debuff that would have prevented you from consuming it in the first place''. This was fixed by the time 1.2 rolled out.

* With [[{{MenuTimeLockout}} autopause]] turned on, you can swing your sword and pause in the middle of the animation to click a potion up from your inventory, unpausing will consume it, ''even if you have the Potion Sickness debuff that would have prevented you from consuming it in the first place''.