Can you try the following?
{
games(func:has(game.name), orderdesc:game.popularity,first:10) @filter(alloftext(game.name,"Pokemon")) {
game.coverUrl
game.name
game.platform
uid
}}
or
{
games(func:type(game), orderdesc:game.popularity,first:10) @filter(alloftext(game.name,"Pokemon")) {
game.coverUrl
game.name
game.platform
uid
}}
But for this you need to set dgraph.type predicate to `game`.