Why no Dragonlance games? I know there is one from dos era but why no one wants to do a modern game like bald yes gate?

Are you looking for the Dragonlance Krynn series?

They have them:

https://www.gog.com/game/dungeons_dragons_krynn_series

I assume the OP is asking why no Dragonlance games have been made since the DOS era. The answer is licensing issues, as always.

D&D is now owned by WotC (which is making money with MtG), and WotC is owned by Hasbro. Hasbro can sit on historied properties however much they like.

D&D's primary setting in its heyday was Greyhawk lite. D&D's most popular setting was Forgotten Realms. A setting is valuable because it brings new concepts to the table. Dragonlance's character options are nothing new, and its metaplot is too constricted and clogged with superpowered NPCs (remember that the Companions were sample player characters originally).

Even back then (in the late 90s and early oughts), because fantasy tropes are more public domain-ish than space adventure tropes, licensing the D&D settings for a videogame wasn't a particularly sound investment. If you were a Dragonlance writer and wanted to crank out Dragonlance sourcebooks for Dragonlance fans, you could (and they did). If you were a videogame developer, you would be better off creating and investing in your own setting (see: Dragon Age). Tabletop mechanics the settings were packaged with are fucking terrible for a traditional CRPG. With the videogame audience eclipsing the tabletop audience, and internets more and more accessible, "here, play this game, it's based on a system you're already familiar with" stopped being a selling point. In the DOS era, videogames were tie-in products. This hasn't been true in over 20 years; and D&D in particular is so horribly mismanaged that it's more likely to sink a game than sell it.

Will we see a Dragonlance game? Maybe. WotC is now helmed by Chris Cocks, a Microsoft person who's probably there for online MtG, but maybe, just maybe, he won't be allergic to WotC making money off its other properties. After Mearls' inexplicable tenure, one property is as good as another, so why not Zoidberg.

That's the best snippet ever.

Probably typed on Android of iOS and used autocomplete.

Maybe he played the porno version. =P
Besides that, I had a chuckle at the characterization of BG as "modern", as opposed to those old games from the DOS era (during the last few years of which, Baldur's Gate came out).

Or maybe he's referring to the modern remakes.

Those aren't remakes, though -- they're just the same old games with some tweaks, bug fixes, integrated mods, and a bit of new content thrown in for good measure. (Calling them updates or "remasters" would be more accurate in this case.) Siege of Dragonspear is the only one that's completely new...but even that's "only" an expansion, and still uses the same modified BG2 version of the old Infinity Engine, as far as I know. EDIT: So, it's only completely new in terms of content.

Screw Dragonlance, give us some more Dark Sun games (and books)!

Give us both.

Thanks for the comments friends! Not interested in the dos games so I might try the Drakensang dark eye games