(Definition of "treasure" for the purposes of this post: primarily coins but anything which is heavy, valuable but not useful to the party beyond its cash value and therefore not something they necessarily need or want to carry around).
Treasure is bulky. Particularly when you get past the first few levels, any decent sized find, or cumulative series of finds, is heavier than can reasonably be carried around a dungeon or other setting while remaining combat ready and able to move at anything faster than a slow crawl.
When I was younger encumbrance was something we tended to ignore beyond (a) making sure everyone was able to move at the outset and (b) stopping things which were obviously impractical (the thief carrying the +2 plate mail they found so they could sell it later).
Looking at the possibility of treating this a bit more realistically, how do other people handle it? Or is ignoring encumbrance beyond the obvious a common house rule?
Best Answer
It depends on why you're playing AD&D and what kind of game you're running. Do you and your group enjoy the challenge of tackling mundane problems in-game, like how to best navigate the Swamps of Miredom, whether to risk the mountain pass before the spring thaw, or where to find a buyer for a two-tonne gorgon carcass?
If playing people trying to get by and turn a profit on their strength and wits is your group's thing, then by all means go full-on with the encumbrance rules and let them enjoy trying to figure out how to pack and transport that dragon hoard, how to guard and secure the remains between trips out of the dungeon against the scavengers and opportunists come to steal some of it away, and how to store, trade, sell, or otherwise make useful the treasure without getting scammed Gold Rush–style by people raising their prices to profit from the haul. If you know your players enjoy this kind of problem-solving they still might grumble if you enforce encumbrance scrupulously, but just remind them that there's no challenge to getting the treasure home if they can all just carry infinite gold on their backs.
If this is the way you go, you can make it easier on everyone by adopting a coarser-grained encumbrance system that still tracks every item but not by pounds. Some of the latest D&D retroclones have adopted a "stone weight" encumbrance system, where items are tracked by the stone (~10 or 20 lbs). I believe the original implementation was in Delta's D&D house rules, and a retroclone that implements a variant of stone weight is Adventurer Conqueror King. In these systems, stuff below 1 stone tend to be bundled (e.g., arrows) or you can carry X of them before you have to add 1 stone to your carried weight (scrolls, etc.).
Alternatively you can use a "slot" encumbrance system, to really emphasise the bulkiness of stuff and the importance of where and how you pack things. Untimately proposed such a system in blog post that you could use. Torchbearer and Lamentations of the Flame Princess implement such a slot-based encumbrance system as well.
If your group is more about the heroism and story, then probably playing encumbrance by ear or hand-waving it entirely would be better. They still might enjoy the occasional strict-encumbrance challenge, but when it's the exception rather than the rule it can be a nice, special challenge without becoming tedious. (This is where your skill and judgement as a DM will be put to the test—judge your players right and they'll love it even while complaining; wrong and they'll hate it.)
However, I've found that playing encumbrance by ear is a pretty solid strategy as a DM. If you get in the habit of asking the players where they're carrying all this stuff—have them describe how they're dressed and how they're carrying all that gear—you can make judgements as necessary when it matters to the game play / plot / task at hand, and levy a penalty (or bonus) that suits you. Then the benefits are several-fold:
This "encumbrance system" worked for me in a game of AD&D where I wanted the game to move swiftly, but I also didn't want the players ignoring the downsides of having too much gear and trying to carry too much loot. When I wanted them to feel the strain of fleeing certain death while hauling around a magic stone head, I wove their struggles to hang on to the thing into the way I described the action, making it obvious that their choice to keep it might be their downfall at any moment if they made a misstep. If I'd been using strict encumbrance then they probably couldn't have carried that stone head with the rest of the things they carried without being a few pounds into the "overloaded" category, and it would have been obvious that they couldn't reasonably choose to take it, but it was far, far more interesting a game when they could choose to take it with them, but at the constant risk of it slowing them down at a critical moment.