6 FREE GAMES LIKE MARIO — LEGAL & IN-BROWSER

"Like Mario" carries a lot of freight for one search phrase, so let me be precise about the cargo. Super Mario Bros. (1985) was built on three ideas. Momentum: holding run builds speed, and speed buys longer, higher jumps, which makes movement a resource you manage rather than a button you press. The variable jump: tap for a hop, hold for the full arc — one input, a whole vocabulary. And teaching without text: World 1-1 is the canonical case study, its first Goomba placed exactly where you must learn the jump or lose a life cheap enough to spend on the lesson.

The sequels added a fourth idea: power-ups that change your verbs, not your score. The Super Leaf in Super Mario Bros. 3 put flight on the table; Super Mario World's cape kept it there. A mushroom isn't points — it changes what you can do and what you can survive. That grammar — momentum, expressive jumps, wordless lessons, expanding verbs — is what people actually miss when they type "games like Mario" into a search box. Each cartridge above speaks some dialect of it, and none of them will earn this page a takedown notice.

Twin Dragons is the straightest answer on the shelf: a run-and-jump through colourful themed stages, no gimmick bolted on. If your itch is simply "more levels in that idiom," start here. It was written in 2018 in Millfork, a programming language built for 8-bit-era CPUs — new code under old constraints, which is exactly the trade that produced the original.

Nova the Squirrel scratches the Super Mario Bros. 3 itch instead: not one good mechanic, but a full-length campaign that keeps handing you new ones. My card above calls it "a giant ability list," which undersells the point — a long platformer stays alive by changing what you can do, and Nova commits to that. It is also fully open-source, so you can read how an NES platformer works line by line. Nintendo never offered that.

Feline answers the handheld version of the craving. The Game Boy Advance spent much of its life hosting Mario's back catalogue through the Super Mario Advance line; Feline is original work for that same hardware, built in the open for GBA Jam 2021, with a nimble cat where the plumber would be.

Streemerz is for the player who misses the hard jumps more than the mushrooms. It takes Mario's committed parabolic arc and replaces it with a thrown streamer: you aim each move up a tower of precision platforming while killer clowns object. Mario asks you to commit to a jump; Streemerz asks you to commit to an angle. Same discipline, different geometry.

Sir Ababol serves the completionist. Mario trained a generation to vacuum coins and test every suspicious pipe; Sir Ababol makes collection the entire contract — 24 ababol flowers (that's a poppy, in the Spanish of Aragón) scattered across the Monegrian fields, with keys deciding which paths open. There is nothing to finish except everything.

Jet Paco reaches further back. Before Super Mario Bros. scrolled, Mario Bros. (1983) was an arcade game on one fixed screen, and that single-screen clarity is its own pleasure: every threat visible, every goal in view, nowhere to hide. Jet Paco rebuilds that loop with a jetpack — thrust instead of a jump arc — and patrolled stages that open only once every energy cell is collected.

Honest triage, because a shelf is useless without an order to read it in. If you want the closest thing to a new Super Mario Bros. tonight, load Twin Dragons. If you want a campaign you'll actually come back to, it's Nova the Squirrel. Ten spare minutes favours Jet Paco; a free evening and a healthy relationship with failure favours Streemerz. Feline suits anyone who did their formative jumping on a handheld, and Sir Ababol is for the people who never left a level until the counter was clean.

Two practical notes. Precision platforming punishes a worn controller, so run yours through my gamepad tester before blaming Streemerz for your stick drift. And if you're wondering how original games end up free and legal on dead consoles, that's homebrew — I wrote it down. The wider shelves live at platformers, NES and GBA.