I recently got a budget laptop, and I am wondering what games would be a good fit for it. Here are some considerations:

* The laptop specs are not impressive. The CPU is something like a (modern) Pentium or Celeron, none of this Core i(whatever) stuff, and there's no discrete GPU. Hence, games that are demanding of the CPU or GPU are out. It has 4GB of RAM, which is actually quite good for the price point. (Many other laptops at this price point, including the newer model of this one, have only 2GB.) I note that Morrowind does seem to run decently on this hardware (but see below for why that game is not suitable). It is a modern system, so games that require modern versions of OpenGL are likely to work if they aren't demanding.
* I only have 64GB of storage total, so no larger games; in fact, I would prefer to avoid games whose sizes are measured in gigabytes.
* Control issues: The laptop only has a keyboard (no numeric keyboard; it's a small laptop) and a trackpad with two buttons. Therefore, I need games that can be played with keyboard *or* mouse, with keyboard preferred. (It's OK if the mouse is needed occasionally, like in menus, as long as its use is not time-critical.) Games that require simultaneous use of both keyboard and mouse, like Morrowind, are out.
* I removed Windows from this laptop after I got it; therefore, games must work on Linux (specifically, Debian Stable). WINE is acceptable, provided it works on either of the versions found in Debian stable.

So, any suggestions for games that would be a good fit for this laptop?
(Maybe I might try Undertale?)

Tangledeep
EDIT: Also:
Ember
Book of Demons
Dead Cells
Momodora RUTM
Shadowhand
Tansistor
Baldur's Gate 1&2 EE
EDIT 2:
Cosmic Star Heroine

Some decent suggestions.

Baldur's Gate 1&2 EE require a bit too much mouse for my tastes, especially since I would be using a trackpad instead of a physical mouse. Also, I've found that I don't really like the games they're enhanced versions of.

Tangledeep has been recommended to me in multiple threads; I still haven't gotten around to buying it, but it is on my wishlist.

The only games on that list that I actually own are Momodora and Cosmic Star Heroine.

By the way, I decided to try Wonder Boy: The Dragon's Trap, and (at least through the intro stage) it runs smoothly. Maybe I'll give that game another go on this laptop. (This game is an interesting case; it needs modern graphics hardware features, but it doesn't seem to tax the hardware at all, and can run on low end machines if they're recent enough. Then again, the game comes with wb3.sms in the data files, which can be run on an emulator if the remake won't run.)

Also, Undertale (via WINE) seems to work, but I didn't test past the naming screen.

Not a suggestion for a specific game, but I would take a peek at badon's gOgMix:

https://www.gog.com/mix/games_that_work_on_old_low_spec_pcs