Electronic linkages

Highlights

Game Engine Black Books
Zdog Round, flat, designer-friendly pseudo-3D engine for canvas & SVG

Tools of interest

GitHub - SuperIlu/DOjS: A DOS JavaScript Canvas with sound
STOS and AMOS game creators
Tweego: free command line compiler for Twine
Chapbook: a story format for Twine 2
Specs related to Twine
A Catalog of Twine Story Formats
Belle - Visual novel maker
Visual Novel Engine for the Web - WebStory Engine
Coblis — Color Blindness Simulator
GBForth: a Forth-based Game Boy development kit

Tool round-ups

A regular source is The Candybox Blog.

making your own engine: a survey of the landscape (14 July 2022)
IF and Dialogue System Link Dump (7 August 2019)
Comprehensive list of visual novel engines (28 June 2019)
The best engines for making your own visual novel (14 February 2018)

More roundups:

Open source, experimental, and tiny tools roundup
Fantasy consoles/computers
Content generators
Game Maker — TVTropes
Game Creation Tools Classification
Game Making Tools Wiki
Free Stuff for Game Programmers
Open Source Libraries — lots of links
Open source games list (OSGL); Contains information about 1368 open source games and 310 game engines/tools.
Awesome Gamedev; A collection of free software and free culture resources for making amazing games.
Let's Get Creative: A collection of high-quality, free, online creativity tools.

For HTML5

Miscellaneous

A huge source of links is always Game Developer: The Art and Business of Making Games.

Do You Speak the Lingo? (6 January 2022) — about making Director games work in ScummVM
Building Gameworlds in PuzzleScript (28 December 2021)

Pygame 2 released on 20th birthday (29 October 2020)
Creating homebrew games for the Nintendo Gameboy has just become much easier! (28 August 2020)
Take Your Audience on an Interactive Adventure with Twine: A Free No-Code Tool for Creating Nonlinear Games and Stories (5 March 2020)

Blade Runner game becoming playable again through ScumVM ^sic (17 June 2019)
Zarf Updates: What is ZIL anyway? (17 April 2019)
Dungeo - a Bard's Tale-like game in PICO-8 (22 January 2019)
Are RPG Maker games as bad as people think? (1 September 2019)
Diary of an NESmaker developer (16 March 2019)

Creating a (Non-Trivial) Lisp Game in 2018 (8 December 2018)
Someone has ported Wolfenstein 3D for the Pico-8 fantasy console (25 October 2018)
All their engines: stunning, original critique of the term "game engine" from a socio-political perspective, revolving around Id Software and the Doom franchise (8 August 2018)
A brief history of text-based games and open source (20 July 2018)
How small game makers found their community with Bitsy (23 February 2018)
Super Retro Maker Developers Talk About Giving Players The Tools To Make 80’s Sidescrollers (29 Janyary 2018)

How an accountant created an entire RPG inside an Excel spreadsheet (16 April 2013)
A look inside the Final Fantasy VII game engine (4 February 2013)
Guerrilla Tool Development (23 October 2009)