Sexual activity may follow sexual arousal. Comparisons of the merits of simulation games versus other teaching techniques have been carried out by many researchers and a number of comprehensive reviews have been published. While the two genres often share a common visual presentation, dating sims are sometimes considered to be more statistically based than the " choose your own adventure " style of visual novels. Human sexual activity has sociological, cognitive, emotional , behavioral and biological aspects; these include personal bonding , sharing emotions and the physiology of the reproductive system , sex drive , sexual intercourse and sexual behavior in all its forms. The term "dating sim" is also often used incorrectly in English as a generic term for romance-driven games ren'ai games , a subject matter which is stereotypically associated with the visual novel genre. From three basic types of strategic, planning, and learning exercises: History While many credit simulation games beginning with Will Wright and SimCity in , the true progenitor of the genre was "Fortune Builder", released in on Colecovision. The most common objective of dating sims is to date, usually choosing from among several characters, and to achieve a romantic relationship. Sexual activity may also include conduct and activities which are intended to arouse the sexual interest of another or enhance the sex life of another, such as strategies to find or attract partners courtship and display behavior , or personal interactions between individuals for instance, foreplay or BDSM. This can lead to confusion, as visual novels are considered a subgenre of adventure games and are not technically included in the dating sim genre. Sexual activity normally results in sexual arousal and physiological changes in the aroused person, some of which are pronounced while others are more subtle.