OGL: Yes. For details, see the faq:
Q: I want to distribute computer software using the OGL. Is that possible?
A: Yes, it's certainly possible. The most significant thing that will impact your effort is that you have to give all the recipients the right to extract and use any Open Game Content you've included in your application, and you have to clearly identify what part of the software is Open Game Content.
One way is to design your application so that all the Open Game Content resides in files that are human-readable (that is, in a format that can be opened and understood by a reasonable person). Another is to have all the data used by the program viewable somehow while the program runs.
Distributing the source code not an acceptable method of compliance. First off, most programming languages are not easy to understand if the user hasnÍt studied the language. Second, the source code is a separate entity from the executable file. The user must have access to the actual Open Content used.
See the Software FAQ for more information.
GSL: No. It only lets you do certain things, and software's not one of them.
3. Licensed Products. The license granted in Section 4 is for use solely in connection with
Licensee’s publication, distribution, and sale of roleplaying games and roleplaying game supplements that
contain the Licensed Materials and are published in a hardcover or soft-cover printed book format or in a
single-download electronic book format (such as .pdf), and accessory products to the foregoing roleplaying
games and roleplaying game supplements that are not otherwise listed as excluded in Section 5.5
(“Licensed Products”).
5.5 Licensed Products. This License applies solely to Licensed Products as defined in
Section 3 and to the specified uses set forth in Section 4. For the avoidance of doubt, and by way of
example only, no Licensed Product will (a) include web sites, interactive products, miniatures, or character
creators; (b) describe a process for creating a character or applying the effects of experience to a character;
(c) use the terms “Core Rules” or “Core Rulebook” or variations thereof on its cover or title, in self-reference
or in advertising or marketing thereof; (d) refer to any artwork, imagery or other depiction contained in a
Core Rulebook; (e) reprint any material contained in a Core Rulebook except as explicitly provided in
Section 4; or (f) be incorporated into another product that is itself not a Licensed Product (such as, by way
of example only, a magazine or book compilation).
Also see the FAQ where they tell you "No" some more.
It's a touch more work — and not easily summarized in this text box — but the Drama-focused version of the Cortex Plus system (as seen in games like Smallville) features a lifepath-based character creation system that takes a PC from childhood all the way to playability. Each step adds assets and resources along the way, and forges connections between the other PCs and any signature NPCs you come up with. Lastly, Cortex Plus does have a license structure — both commercial and non-commercial — under which you can release your game.
Best Answer
Yes, originally expected in 2015, 5e OGL and SRD arrived on Jan 2016.
OGL is now embedded in the SRD, available here:
http://dnd.wizards.com/articles/features/systems-reference-document-srd
5e OGL is essentially the same with 3r OGL word for word (see below).
Like 3r SRD (and unlike 4e's), it contains de-flavored basic player and DM resources that you can use to create other OGL materials. Please keep in mind that Basic Rules is not SRD5, and SRD5 is not 3r SRD. For example, SRD 5.0 includes experience table (under "Beyond 1st Level", page 56), but simplified all classes to their archetype, and contains only one feat.
Wizards of the Coast has also created a new online market, Dungeon Masters Guild, that allows you to extend proprietary materials such as Forgotten Realms and sell them, sharing the profit with Wizards.
Otherwise, what you can do with the SRD and what you cannot do remains the same as 3r. You can still distribute (and sell) your SRD based OGL materials, outside the guild, as long as the materials does not use "Product Identities" and does not violate other copyrights.
Differences between 5e OGL with 3r OGL:
System Reference Document 5.0instead ofSystem Reference Document. The years and authors has also been updated.Historically, the plan was an announcement @ 2014 fall and release in 2015.
Here is an official post about it:
This matches some other third party comments, which hints that they want to do something different from OGL:
It may be related that Wizards has not granted any translation license yet. Perhaps the developers are focusing on core rulebooks and neglected licenses. The real reason may be unrelated, of course.
As far as I know, as of 2016 Aug, there is still no official 5e translation. Everyone may translate and release SRD5 under the terms of OGL, however, which is what Hobby Japan do.
(Update 2017 March: Finally, after 3 years, Gale Force Nine will translate D&D 5e into multiple languages, starting with French, German, Italian, Japanese, Spanish, Polish, and Portuguese. This stands in contrast with previous editions where a local publisher would buy the right to translate and distribute the local language.)