Monkey Bizniz has launched its demo on Steam, giving players their first proper shot at Starlight Games’ physics-driven co-op adventure. The demo went live on June 11 and offers an early look at the game’s first large sandbox mountain level, while the full release is still listed as coming soon.
That alone is a strong enough hook. A co-op game about monkeys dragging an increasingly unstable banana cart up dangerous mountain terrain was always going to stand out, but Monkey Bizniz also seems to understand exactly where the fun is supposed to come from: the bit where teamwork slowly gives way to panic, blame, and someone falling off a cliff while the cart rolls backwards.
A co-op game built around chaos
At its core, Monkey Bizniz is about collecting as many bananas as possible and hauling them to extraction points at the summit of each level. The problem, of course, is everything in between.
Players can run, climb, jump, grab objects, solve environmental puzzles, and work together to keep the cart steady as it rolls through unstable terrain. One player might be helping guide the cart, another might be hitting pressure plates or operating machinery, and another may be accidentally making everything worse. That seems to be very much part of the intended experience.
The game supports solo play as well as up to four-player co-op, with proximity chat adding even more room for chaos once plans start going wrong in real time.
Physics, sabotage and banana greed
The biggest selling point here is clearly the physics. Every extra banana adds weight to the cart, which means every success makes the next section more dangerous. That is a smart little loop, because it turns greed into a risk factor rather than just a score tally.
The environments sound designed to make the most of that. Rolling boulders, swinging bridges, collapsing paths and puzzle-based obstacles are all part of the mix, and the game also leans into the fact that helping your friends is optional when being an absolute menace is funnier.
That mix of co-operation and mild betrayal is probably where Monkey Bizniz will live or die. Games like this need their chaos to feel funny rather than frustrating, and based on the pitch, Starlight seems to understand that balance pretty well.


The demo is only an early taste
It is worth noting that this is still a limited demo rather than the finished package. According to the Steam page, the build currently focuses on introducing the game’s core exploration and co-op feel, with fewer obstacles, puzzles, enemies, items and challenges than the final version is planned to include.
That means some sections may feel more open than the full game eventually will, but that is fair enough for a demo built around giving players a feel for the basics. If the core movement, teamwork and cart physics are fun, that is the important bit to prove first.
A Liverpool-made game with a daft enough idea to work
It is also nice seeing something like this coming out of Liverpool. Starlight Games is based there, and Monkey Bizniz feels like exactly the kind of playful, slightly ridiculous indie concept that can carve out a space for itself if the execution lands.
There is no shortage of multiplayer games trying to force funny moments. The better ones are the ones that build systems which naturally let players create their own nonsense, and Monkey Bizniz looks like it is aiming for that sort of comedy rather than trying to script every laugh.

Our take on Monkey Bizniz
Monkey Bizniz looks like the kind of game that could create absolute gold with the right group of mates. The banana cart gimmick is daft in the right way, the physics seem set up for constant disaster, and the co-op structure feels built for shouting, laughing and blaming each other for things that were definitely not your fault.
The demo is live now, and while the full game is still on the way, this already feels like a strong setup for some properly stupid fun.
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