BattleSpinners puts the whole moveset in the parts menu

It is a top-down pixel-art action game about spinning tops. You assemble a spinner from a spread of parts, each carrying its own stats and abilities across speed, power and defence, and then you put it on the floor against someone else’s. The collisions are simulated rather than scripted, so a duel is decided by momentum, angle and timing — deflect the hit coming in, line up a strike of your own, and send the other top out of the stadium.

What makes that unusual is where the decisions sit. In most fighting games the build is fixed and the moveset is the content: a dozen inputs to learn and choose between under pressure. Here the content splits in two, and the halves barely touch. The parts menu is where you decide what kind of fighter you are. The arena is where you find out, with almost nothing in your hands except a heading and the speed you are carrying into contact.

That thinness is the design, not a shortfall. A top cannot block, cannot cancel, cannot throw out a jab to see what happens. Every attack is also a commitment of position, because the only way to hit is to go there yourself, and the only way to hit hard is to have already been moving. Defence and offence are the same action seen from two angles, which is a much rarer property than it sounds.

The floors do the rest of the arguing. Arenas run from bare training rings up to grand stadiums with hazards that can turn a fight, and in a game where losing means leaving the surface, the shape of the surface is the third fighter in the match. A hazard here is not chip damage — it is a shove towards the edge you were already trying not to find.

The secret of Mario’s jump and other versatile verbs is the essay that explains how a game with one action can hold a whole match. Its argument is that the same verb produces wildly different outcomes depending on timing, speed and context, which is exactly the bet a spinner game is making. Colliding is the only verb, and it has to be a glancing deflection, a full-power ram and a desperate save depending on the numbers going into it. If the collision resolves the same way every time, there is no game underneath the physics.

How a Super Smash Bros. fighter is designed is the other half, because that is the closest thing to what the parts menu is asking players to do. Smash builds each fighter from one sentence of theme, then gives it stats, tradeoffs and animation clear enough to read at a glance. BattleSpinners hands that job to the player, which quietly raises the bar: a part is only a real choice if its tradeoff is legible before the fight and visible during it. Speed, power and defence sliders are easy to write and hard to make you feel at a distance, on a small sprite, spinning.

Depth, mastery and Vanquish is the standard to hold it to — an easy surface with expressive depth underneath. The surface here is free: anyone understands two tops in a bowl. The depth has to come from players learning what a heavy build does to a light one on a small floor, and from the tournament being winnable by reading the matchup rather than by owning the best parts. That is the failure mode worth watching. A build game whose strongest loadout is simply the strongest loadout stops being a fighting game and becomes a shopping one.

BattleSpinners is by Nowa Letyrex, self-published, listed under Action and coming to Windows. It carries a single-player tournament plus local multiplayer — split-screen PvP and co-op — with full controller support, a gamepad recommendation on the store page, and Remote Play Together for friends who are not on the same couch.

The local multiplayer is the part that matters most for this genre. Physics knockouts are an argument you want to have in the same room, out loud, with someone who saw the same collision you did and disagrees about it. Split-screen and Remote Play Together are how a small game gets that conversation without needing netcode it cannot afford.

If the appeal is the build being the character, Shot One Fighters is the sibling — a fighting game that throws the moveset out between runs and asks whether your skill survives the swap. Same question from the other direction: BattleSpinners lets you choose the loadout and takes the buttons away, that one keeps the buttons and takes the choice.