Alexim: We all know that GOG struggles to secure AAA titles from big publishers because of their stubbornness in implementing DRM and because of the vastly smaller user base than Steam.
But what I don't see mentioned often is that even indie titles released by mid-sized publishers seem to be starting to abandon GOG, or at least leave it as a last option to scrape together some extra money.
You can also see how indie developers who have been lucky enough to be successful have almost immediately ditched GOG and stopped releasing their games on this platform, which then lacks a lot of sequels to successful indie games. Here are a few examples:
Spelunky: released on day 1 on GOG in 2013 by Mossmouth.
Spelunky 2: released only on Steam in 2020 also by Mossmouth.
Risk of Rain: released 3 months late on GOG in 2014 by Hopoo Games.
Risk of Rain 2: released only on Steam and EGS in 2020 also by Hopoo Games, later acquired by Gearbox.
Octodad: Dadliest Catch: released on day 1 on GOG in 2014 by Young Horses.
Bugsnax: the developers' new game released on EGS in 2020 and Steam in 2022 and they said they were not interested in GOG.
Q.U.B.E. and
Q.U.B.E. 2: released almost at day 1 on GOG in 2014 and 2018.
Q.U.B.E. 10th Anniversary: released only on Steam and EGS in 2022 and the developers said they were not interested in GOG.
Slime Rancher: released on GOG in 2016 by Monomi Park. They never released the DLCs of the game.
Slime Rancher 2: released only on Steam and EGS in 2022 and the developers said they were not interested in GOG.
Backbone: released on day 1 on GOG in 2021 by Raw Fury.
Tails: The Backbone Preludes: released only on Steam and EGS in 2023 and no sign of it coming to GOG.
Darkest Dungeon: released on day 1 on GOG in 2016 by Red Hook Studios.
Darkest Dungeon II: it has just been officially announced that the sequel will be released on Steam and EGS. No mention of GOG.
Supergiant Games used to release its games on GOG about a year late, Hades was released on Steam in 2020 after the exclusive deal with EGS.
Devolver Digital delayed the release of Return to Monkey Island on GOG specifically ignoring any request for explanation. It remains to be seen how they will act with their upcoming releases.
Humble Games used to release its games on GOG on day 1, now there has been Midnight Fight Express "coming soon" for ages, and SIGNALIS doesn't look like it will ever arrive.
GOG remains attractive to self-publishing indie starters and small publishers, who benefit from every bit of additional media exposure, as well as having a strong loyal group of quality publishers such as Akupara, Wadjet Eye Games, and THQ Nordic, not counting various publishers of adult games that found a home after experiencing Steam's instability.
Nonetheless, GOG is increasingly unable to secure the release of successful indie sequels, and the users are forced to buy the aforementioned on Steam or EGS, or wait years in the faint hope that they will finally arrive on GOG.
In your opinion, what are the issues that lead even indies to abandon GOG at the first sign of success, and what could be done to convince the developers to stay on GOG?
It's up to the developers and publishers ultimately. GoG is the butt end of a cigarette, a good run for games but it's at the end. Take Skyrim for instance, it ended up on gog.
Edit: I do hope more publishers and developers become drm free. And triple a titles become more prevalent.