dosbox-x or dosbox-staging for playing games specifically.
These are both forks of dosbox, as that is dead and has been for a decade or so. They've had releases, but no real progress.
They're actively hostile to outside collaborators (thus the forks), and basically censor the vogons forums they moderate to hide the existence of forks[0]. Scummy.
[0] https://github.com/dosbox-staging/dosbox-staging/issues/217
https://winworldpc.com/product/wordperfect/5x-dos
That said, I know for fact that WP is not abandonware, so I'm not sure about the legality of this.
WordPerfect for a different word processor. Bonus points if you start Word Perfect in full screen text mode. http://www.columbia.edu/~em36/wpdos/wpfullscreentextmode.gif
QuarkXPress for desktop publishing: https://news.ycombinator.com/item?id=7360076
dBaseII for databases.
Elite for games, but don't forget to turn off Turbo.