Licenses
Software concept
This is a container group; its children are:
| Free, but not Freeware | Free to obtain and play (no payments required), but have certain limitations that make them something else than freeware, such as requires proprietary server software you can't obtain, no rights to redistribute, and similar restrictions. | 1977 / 2022 | 509 games |
| ISC License | A simplified BSD & MIT amalgamation. Effectively grants credit to & simultaneously absolves the author of all issues of morality created by their work | 2009 / 2015 | 2 games |
| License: Apache | A license that protects software freedom. Requires original copyright & liability disclaimer remain intact but allows any GPLv3 compatible license for derivatives. | 2010 / 2017 | 6 games |
| License: BSD | Distributed under the BSD license. (too short) | 1991 / 2016 | 69 games |
| License: New BSD | The BSD license with the advertising clause. Source & binary are redistributable & derivitivible, but must retain copyright & license & 'no endorsement' by original author | 2006 / 2017 | 12 games |
| License: Creative Commons | A license primarily intended for artistic products such as graphic art, stories, etc. (too short) | 1997 / 2020 | 139 games |
| License: Common Development and Distribution License | Based on the MPL & SPL. Not GPL compatible [b]by design[/b]. Open Source & Free Software. (too short) | 1 game | |
| License: Choice of licenses | Authors of these games have specified multiple licenses that users and other developers may select at their option. | 1 game | |
| Conflicting Licenses | These simultaneously use multiple licenses that conflict; countervailing benefits of either license for users and/or developers. | 2007 / 2011 | 2 games |
| License: Cross-platform | Single purchase from at least one official vendor entitles customer to copies on multiple platforms. | 1998 / 2019 | 319 games |
| License: Eclipse Public License | Distributed under the EPL license. (too short) | 1 game | |
| Free Software | Licenses approved by the Free Software Foundation. (too short) | container group | |
| License: GNU GPL 1 or 2 | Distributed under the GNU GPL license (ver. 1 or 2). Free to use for any purpose, study, improve, and redistribute. Not free to restrict said freedoms | 1983 / 2021 | 1334 games |
| License GNU Affero General Public License | Distributed under the GNU Affero license. Free to use for any purpose, study, improve, & redistribute. Not free to restrict. Network use requires full compliance | 2007 / 2016 | 11 games |
| License: GNU GPL version 3 | Distributed under the GNU GPL Version 3 license. Which includes clauses allowing fundamentally different uses & restrictions not existent in GPL 1 & 2 | 1994 / 2021 | 205 games |
| License: Lesser GNU Public License | Licensed under the terms of the LGPL. Intended to apply to code libraries that [b]can[/b] be mixed with code under licenses incompatible with GPL | 1987 / 2017 | 42 games |
| License: MIT / X11 / PFSL / ISC / Expat | Distributed under the MIT license, X11 license, ISC license, or any other license that meets the standards of a Permissive Free Software License. | 1983 / 2016 | container group 84 games |
| Mixed license | Distributed under mixed licensing. (too short) | 2 games | |
| License: Mozilla Public License | Distributed under the Mozilla Public License. MPL is based on the modified BSD license & the GNU General Public License, having elements of both. | 2006 / 2020 | 20 games |
| License: Microsoft Public License | Available under Microsoft's least restrictive license. It is OSI and FSF approved but not compatible with the GNU GPL. | 1 game | |
| License: Multiple copies | Buying the game from [i]anywhere[/i] gives 2 or more copies of it. (too short) | 1986 / 2013 | 13 games |
| License: Open Software License 3.0 | An OSI approved license designed for developers. (too short) | 1 game | |
| Proprietary license | Distributed under a license that witholds and/or restricts source code & rights granted by law, usually for commercial purposes & is almost always unique per game | 1970 / 2024 | 13326 games |
| License: Public Domain | Copyright holders have formally and irreparably relinquished all rights to these games. No one owns it, nor can it be owned ever again (in theory). | 1979 / 2020 | 208 games |
| License: Vague | A custom license with language that has legally imprecise terms, overly broad terms, not complete, and/or unclear. | 1977 / 2021 | 97 games |
| License: PNG/ZLIB | Distributed under the PNG/ZLIB license. (too short) | 2000 / 2017 | 25 games |
| License change | The license by which the game is available has changed since release, such as formerly commercial game becoming freeware or open source, or formerly free game becoming commercial/proprietary. | 1980 / 2019 | 345 games |
| Open Source | Licenses approved by the Open Source Initiative. (too short) | container group | |
| Source Code Concepts | Groups pertaining to source code. (too short) | container group | |
| UVL: License Pending | With intent to define a license later, an author has notably granted public access to some or all aspects of his game beforehand. | 2014 / 2015 | 2 games |