Picking a number of character attributes

There’s one thing that few game developers can avoid when working on an RPG, it’s designing attributes. As long as an RPG includes equipments with a progression curve using numbers, you have to give a mean to those numbers. Not only regarding the way they’re used internally to determine – for example – attack damage and defenses, but also if and how they’ll be exposed to the players to allow them to compare equipment and understand what is better. One of the notable decision is the “model” that a game will use for its attributes, model that mostly plays on the amount of attributes that the players will have to deal with.

Warning: text wall ahead.


Common attribute models

If I’ve only recently started to implement attributes meaning inside Metaworld, I’ve been working on them for quite some time, on paper. I did some research, and I identified five of these attribute models. Of course, all of them are abritrarily defined by me, but it helped me to categorize such things. If you’re thinking of any other, feel free to comment, I’d like to hear about it!

  • the simpler the better (15- attributes), aka the beginner-friendly model. Few, easy to grasp attributes such as attack, defense, hp, mp. Classic and efficient, found in a lot of games. Does not offer much in terms of build customization, it can be very limitating on the long run regarding equipment quality and diversity. So, Usually, it’s used by smaller games, or games focused on fun or short-term gameplay rather that long-term equipment build. An example: Cube World.
  • complexity is depth (35+ attributes), the more attributes you have, the more complex it is, the deeper it is. Even if it’s true that this option will bring a lot on the table, it can take some time for players to digest the use and meaning of all attributes, especially if they’re not named distinctevely enough. An example? When you have magic resist, magic resist, magic power, spell strike, magic fortitude, magic suppression, it’s a bit hard to expect the players to intuitively know what they’re used for (Aion, are you here?).
    Something I regularly saw in this case is that the attributes where duplicated for each damage type. You’ll have attack, defense, precision, etc, existing in different versions: physical attack, magic attack, physical defense, magic defense, etc. It helps to understand the attributes, but when overdone, it feels a bit cheap… ArcheAge is faulty of this for having three damage type, melee, range and magic, with plethora of duplicated attributes. It does not seem deep, it seems that every basic stat has been copy/pasted to grant a complexity to the game.
  • average all the way (15~35 attributes): games using a middle ground count of attributes, trying to bring the best of the two world, but bringing some of the worse too. While not exactly being beginner-friendly, the learning curve is not as steep as the more complex games. The build complexity is usually good, at least enough for many players to enjoy it on the long-term. Final Fantasy XIV or Star Wars The Old Republic, both being MMOs, are in this category.
  • composite attributes… Too few is shallow, too much is too complex… Other than going for the middle ground, there’s the possibility to regroup attributes to reduce their amount. Happens a lot in games using things such as “dexterity”, that will for example determine the critical rate, hit precision and evasion rate… All of the sub-attributes are being hidden, though. In this case, it’s obvious that the game need to have a clear explanation of what each attribute does. If my memory is not failing me, Diablo 1 had such a system.
  • hierarchical attributes, that are actually quite similar to composite attributes, except that both the parent and children attributes are modifiable. For example, you have a “Strength” attribute that increases HP, damage, etc, while HP and damage can still be modified individually. It makes the “Strength” attribute very valuable, while still offering granularity in the build. Something also used by ArcheAge.

Three details that are worth noting:
– some games are using a mix of these models, some only one.
– in most cases, there are attributes deemed “primary”, meaning that they’re more important than the other. It does not mean that other attributes are useless, but that those primary attributes are more powerful and visible. Having such a split helps player comprehension when having many attributes since it gives them something to focus on.
– there are some cases of “fake” attributes, that does not impact the gampleay, but are mostly informations given to the player that are deduced. It’s the case of the “DPS” attribute, that shows the damage per second, but is something players won’t have a direct impact on. However if they increase their damage, the DPS value would change in consequence.


Metaworld’s case

I’ve played Aion for quite some time, and while at its begins, it was rather tame on attributes (the balance between simplicity and depth was good), through the successive versions, their count have exploded up to the point that it ended up in the situation I described earlier with hard to understand attributes, and worse, no in-game explanation for them. Somehow, it convinced me that the primary goal I should have was to make attributes easy to identify, and, ideally, intuitive regarding their purpose.

If you look at this picture, you’ll see most of the Metaworld’s current attributes:

Metaworld character attributes
Current character attributes in Metaworld

Even without the labels, how most of these are used should be rather intuitive, except maybe for the three ones on the top left, that are skill damage values.

Other than all these attributes, what’s left to add are the HP and MP, aswell as HP and MP regen, that clearly don’t need explanations if you’re a bit used to games, and the life steal/magic absorb attributes thar aren’t named yet.

As you can see, I’m going for the average count model (close to the arbitrary upper bound with 32 attributes). I’m not interested by a tremendous amount of attributes since it would likely lead to a dilution of the player’s attention between many values, and a steep learning curve. Beside this, I also used the duplication model for four attributes: Attack, Precision, Critical and Defense, that are coming in two different versions corresponding to the two different types of damage that can be inflicted. And finally, I have somewhat composite attributes with the elemental resistances, since they indeed increase resistance towards an element, but all effects from this element also. Which means that increasing the Lightning Resistance will reduce damages of lightning type, but also reduce the chances to be hit by a paralysis effect, that is of lightning type.

I’m quite satisfied with the current set of attributes, but it wasn’t always like that (and there will come someone to say that it’s still unclear ^^). At first I used attributes such as “Cancelling”, “Nulling” and “Concentration”. While the last one can evoke something, it’s tricky to say for sure what it will do. However, the two first attributes… Good luck. I’d like to hear your ideas, just for fun (answers are next paragraph).

Any idea?

Cancelling and Nulling were actually the same attribute with two different temporary names. It was supposed to be an equivalent to an evasion of magic damages: have enough points of that and a bit of luck, and you don’t receive any damage. In the end, I merged this idea with the Evasion, that now allows one to dodge any kind of damage, as long as the player faces the damage source. The split between physical and magic evasion appeared to be somewhat unnecessary, and more restricting than interesting (use one? use both? probably none).
And regarding concentration, it was an attribute used to determine whether or not the player could be interrupted when casting a spell. Another name could have worked, but I went for another mechanic instead, thus removing the “problem”.

And done with this post. Talking about the number of character attributes can be a bit underwhelming, but in my opinion, it’s more important than what it seems to be for both accessibility and long-term investment of the players :)

More about the UI

And I’m back. I didn’t post for a bit more than a month, so, to make up for that, I’ll be posting small recaps of all the work done during this time, since, of course, I’ve been far from being inactive (except mid-may when I was under the malevolent effects of the obligatory cold).

I’ll begin this first recap with the user interface. If you’ve been following my work on Metaworld, you’re probably aware that it’s something that I started a while ago. It’s not something that I was originally planning to do this early in the development, but knowing how tedious it can be to do it at the end of the development, it felt like a good milestone to do it earlier and rely on it to display informations instead of debug logs.


Controls and windows

In the case of the game, the UI is built from scratch, what means that I need to create every single UI control (buttons, scrollbars, windows, etc), and once that is done, I can work on the functional windows that will be used by the players (character profile, city building, etc). Most of the windows I’ve begin to work on are work in progress, and include so far:
– city building,
– character profile,
– game settings,
– inventory,
– main menu,
– and small stuff like speel casting panel, mining panel, item detal panel (see next part).

You might have seen something similar on Twitter if you follow me, but when all the windows are open, it looks loke this:

UI Windows
As you can guess looking at this, I’m not an UX designer, so it will take some iterations before I get something satisfying.

As you can guess looking at this, I’m not an UX designer, so it will take some iterations before I get something satisfying. For the people who have noticed the “map editor”, it’s something for dev purpose only, I’ll talk about in one of the incomings posts.

Also, a note worth to be written : the font used for the interface is not definitive. XNA, that I’ve been using so far, is really bad when it comes to fonts, and I’ll have to replace the automatically generated bitmap font by a proper looking one.


Item details and item icons

Amongst the few panel type windows I created, there’s the item detail panel. The one that displays the item stats and icon. It has a part for itself since I’m still looking for opinions about the best icon style:

Item icon style comparison
So, which style is the best?

The pixel looking one is fast to create, but such a style is overused by indies, and tend to give off a less serious vibe. On the other hand, the drawn icon is longer to create, but avoid the pixel-indie pitfall. So far I’ve had most votes in favor of the second style. What about you?


Skinnable Interface

Amongst the side features of the game that I’ve already talk about: a skinnable interface. I use the fairly old school tileset method to render the interface, using an image like this one:

UI Skin
Old school, but very practical!

That is described by an XML file so that the game know how to display everything.

Using such a technique means that it’s fairly easy to modify the look of the interface as long as you know to use a drawing software. It’s something that I intend to fully support since it does not cost much in terms of development, and will allow the players to customize a bit the game.


Key Bindings

If you’re used to RPGs, you’re probably used to the key binding windows, too… Depending whether you play with the mouse or keyboard, it might be necessary to be able to customize the shortcuts used to open or close a window, even if defaults are often good (the [i] for inventory, for example… who would change that?). The system for this is already completed… But not plugged in the game settings window. To be done soon.

Still on the key bindings, the skillbars are now properly working, too. The keys displayed are no longer just for the show.

See you next post!