To some extent I think games (in addition to all the other billion cathegories they can be organized into) can be said to exist i two cathegories; First easy to use games using tried and true formulas that make for uncomplicated fun that depending on the title can be as deep or shallow as it wants so long as it provides an enjoyable experience. Civ 5 is a good example of this. It is not without depth and really fun, but does not allow for anything more advanced than "make war" "make peace" to take place. It is an uncomplicated "do better than your neighboring nations" game that when compared to strategy titles of higher concept falls flat in the advancedness of its mechanics. The advantage of this is of course that picking it up to play is easy while mastering it still can prove to be difficult. :)
Secondly games can be of the kind that decides to do something a little more advanced, often with a lot of difficult numbers (either happening off-screen, or in some cases (!) on) and very unuique (read complicated) mechanics that on the one hand would allow for deeper gameplay, but at the cost of acessability. To stay withing genre boundaries between examples, Crusader Kings 2 is a game that very successfully tries to mirror the complexities of regal medieval life. It allows for very advanced events to take place and players can if they are clever enough scheme themselves to the heights of power through a myriad of different paths (and murder). This however, provided they can invest the time to adequately learn how to. The game is very complicated and is something that one would need to invest a serious amount of time with to enjoy to its fullest. It will be worth it as most high concept games reward the dilligent player with an experience that (in my honest and humble oppinion) go beyond that of briefly charted games.
That said, anything can be played in a fashion most hard core and even the most simple mechanics acheieve great depth upon mastery, but no matter if the title is advanced to begin with, or just played into advancedness, chances are any one player will probably only have a few such games mastered since, if nothing else, time-to-play will confine such proficiency to a few titles. Also, face it, sometimes we all just like to spend some time relaxing with something uncomplicated. Like shooting lots of things, or an Orange :).
Maybe that is why we so often enjoy games from our past so much, because when all is said and done, we still have a firm grasp of its contents and as such is able to get more out of playing it. but this has nothing to do with The Void so on with the review:
Short story synopsis: You are dead, and have been sent to an afterworld ruled over by a sybiotic collection of female sprirts and their guardians/borderline opressors. The world is bleak and devoid of colour, and as such devoid of life energy, something that you can change. in this world you will travel to different pods (small or large levels that contain gardens for you to harvest colour from or enemies for you to fight. Sometimes both.) and slowly try to establish yourself in the shifting hierarchy of the world. Having failed miserably in my attempts to progress I cannot elaborate further on the story but there is more to it than just harvesting and sharing your hard earned colours with the spirits. Im told there are multiple endings and I can confirm one of them to be evaporating due to a lack of, you guessed it, colour.
Mechanically The void (for all my talk of two cathegories :P) falls somewhere in between having simple mechanics and being really, REALLY difficult and complicated. On the one hand, the main mechanic of the game revolve around colours, the currency of the world as well as your life, ammo, fertilizer and puzzle object. If you lose all the colour that you store within you, then you die, but you will have to drain yourself to process the colour so to make it available for certain things meaning that you will have to think carefully about how much colour you use as life and how much you save for later in either usage cathegory.
But there is more to it than that. In the world there are many different colours, all affecting the world in different ways. Implanting yourself with a certain hue will do things like raising defense, or making you speedier. Some situations may require you to implant certain colours. Just remember that whatever you implant will end up in your "usable-reservoir" so implant wisely.
Yo also need to plant colour for later harvest, meaning you inject a portion of it (the more the better) into a tree and in a while, that tree will have produced more of the same for later use. This is essential to progress since you will have a hard time finding enough raw colour laying about in the levels. Give to recieve.
To use colours you must use spells. Thease can be learnt throughout the game and are uses by making paintbrush-like movements with the mouse to make magical patterns, like a cicle for a shield spell for example. This uses up some of your colour, the better your pattern, the less is used. But beware, for every drop wasted changes the world in some way, red making the monsters more agressive for example. Using such runes, and by donating colour to the spirits of the world will allow you to progress through the levels and towards what awaits at the end.
This is not a game you can just pick up and expect to even be able to play without a serious time commitment. Its mechanics are almost alien in its frivolous use of colour and mercurial relation to world rules compared to lighter titles. What was first a fertile garden may turn into a barren waste if not tended to, and wasting colour can turn any situtation ugly either by making the world hostile or just leaving you unable to pick yourself up again. Save often on different slots, and be ready to learn.
That being said, the reward for such commitment will be having mastered an experience unlike any other out there and the game's unique artstyle and gameplay is as worthy a carrot as any to grind your teeth and bite down on.
And stating this after having played only a paltry amount of it myself is not hypocritical in any way at all i have no idea what you are insinuating i have precious little free time good day sir madam!