How many {software engine} are for {Wolfenstein} ?
How many software engines are used to play Wolfenstein?
SELECT (COUNT(?obj) AS ?value ) { wd:Q4357563 wdt:P408 ?obj }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q4357563> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P408> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

How many game engines are need to run Wolfenstein?