Never have I seen an idle game with this many bugs. They're everywhere, and it's your duty to spread them.

Swarm Simulator is like so many other idle games. You watch some numbers grow, buy some units, upgrade it, watch some bigger numbers. This idle however has no click-gain, so just close down your atuclicker program, is has no use.

The beginning

When you begin, all you have to your disposal is a little meat and a larva. With that you produce a drone which gets you more meat. In the background you got an endless but very slow initial growth of larvaes nessecary to keep hatching drones for more food. WHen you get a certain amount of drones, you can get yourself a queen. But at the cost of 1 larva, 100 drones and 810 meat. In return they produce drones.

Whenever you get to the point of hatching the next thing in line, a new unit arrives and offers to re-produce what you just bought - often at a redicilous price for a mere 1 unit. The same goes to territory, which is nessecary to speed up the larva-gain.

All of these can be upgraded - at the price of other units.

Hooky Spooky Magic

You're a bug and channels magic. Wuuuh! At a point in the game, you can buy a Nexus which generates energy at a really slow rate. Each Nexus produces 0.10 energy a second, and is limited to 5 Nexus max. You can buy upgrades to increase the rate and how much can be stored.

The energy can be used to use different abilities.​

• Larva Rush - get a set amount of new larvaes right away. Price: 1,600 energy.
• Swarmwarp - Travel 15 minutes into the future and gain that times worth of production Price: 1,600 energy.
• Meat Rush - same with larva, but meat instead. Price: 1,600 energy.
• Territory Rush - same with larva and meat, but territory. Price is the same as the others.
• Clone Larvae - this one is opened with the 5th Nexus. It allows you to simply clone your current amount of larvaes up to a set amount. At the time of writing this, I produce 1.29381 million larvaes per second, which allows me to clone up to 129.459 billion larvaes. Price: 12,000 energy per use. Expensive!

Ascending

No fun if you can't reset with a perk. When you get the 5th Nexus, you can ascend. But hold your horse for a minute. It's expensive. Like, super expensive! Instead of simply reseting, ascending means sending your bug-force to another world, killing off most, but strengthing those who remains. Then you get some Mutagen points which you can use to decide how they are strengthen.

You can respec your forces if you don't like how you spend the Mutagen points, but that will reset ascension cost. Which again, is terribly expensive!

To reduce the amount of energy ascending costs, you can use your energy. Every 1 energy spent, reduces the cost by 1. 

It's a nice feature, and with the off-line progress, it's just great. You don't beat the game in a day or hours as you may with click-based idle games.

All in all...

Great simple game but still a bit plain. It's build in HTML5 so the browser doesn't commit suicide trying to load Unity Webplayer is many other idle games are built on, but it's just text. No images, nothing. Black text on a white background. Various numbers and buttons are blue, but that's the only difference you will see.