Zombo

Zombo is a top down survival/combination game where you must discover how to combine objects to create useful items to survive the Zombo horde.

There is an in-game tutorial, however for your reference:

Point your mouse towards an object and press "e" to pick it up.

Press "q" to set an object down

The number keys and the mouse scroll can be used to switch between item slots.

Press "f" to craft your two currently held items together

Press "x" to use any special function of your item

There are 3 modes and 5 handcrafted levels:

Waves/levels: Zombos come out after the each time period is over

Consistent: Zombos consistently attack in waves for a consistent amount of time forever

Activation: Zombos gather over a period of time and by pressing r you release them

Custom survival:

Both Consistent and Activation have endless modes in which the following can be customized:

Number of Zombos gathered -- number of zombos in a wave that will be released consistently  in Consistent Mode

Number of seconds -- the amount of time between each Zombo wave in Consistent Mode

Number of Zombos gathered -- the amount that Zombo waves will increase per second. Decimals are allowed.

Custom mats per second -- number of custom mats that will spawn each second

Number of seconds (in custom materials section) -- interval between the spawning of custom mats in waves.

Min Y Random, Max Y Random, Min X Random, Max Y Random -- bounds in which the custom materials will be spawned.