I don't think you need paypal to pay, might be wrong. And I won't be release a Free version soon! I'm still working on progress supported on Patreon and Itch.
Viewing post in DamselRace (Free / Early Access Version) comments
It is expected to be 10-15$ USD. To preface, the reason a full early access key cost is large is to have access to ALL early access along the way in addition to any side benefits. 10-15$USD "should" be the price of the final product assuming no greater changes.
I am not sure what WeChat is but I'll research it. It will be sold on Steam and Itch if available.