In your game, upwards is not a proper word. Upward is. You can't say forwards.

Ron_Olson

In your game, upwards is not a proper word. Upward is. You can't say forwards.

Ron_Olson

Upwards is not a proper word.

Ron_Olson

Yes. Upwards is not a proper word. That's like saying forwards.

Lady_Choo

Perhaps it depends on where in the world you are Ron. Here in the UK upwards is definitely a word. 

upwardsadverb UK ​ /ˈʌp.wədz/ US ​ /ˈʌp.wɚdz/ mainly uk us usually upward​

C1 towards a higher position, level, or value:

She turned her face upwards to the sun.The cost of completion has been revised upwards again due to inflation.Oppositedownwards

https://dictionary.cambridge.org/dictionary/english/upwards

https://www.merriam-webster.com/dictionary/upwards%20of

https://www.macmillandictionary.com/dictionary/american/upwards

You can also say forwards just fyi.