I have an android game that broke the 50k download mark, and is still growing steadily. On the slowest days it gets 500 downloads.

I've been in positions like this before, but I need some advice regarding how to move forward. I'd like to be able to siphon all of these users into my next game, or maybe try to revive an old game at some point.

I have no social media buttons, so I was thinking of offering in-game currency for following the game's twitter account, but I feel like with all of these users (25k still installed) I can do something more.

I'd appreciate any advice

Thanks

Frequent updates are one option, another is to let your app phone home to get a list of other products you've got, then show the other games to your players.

Annoying, yes, but can be very effective at getting your other products noticed.

What I would do is offering a small amount of in-game currency and some in game item that have a reference to my other game if people download the other game.

Sorry if not proper place, but does this also mean that you can't use another payment option beside theirs? Or there is room like "you can use Paypal if buy from non-mobile version, can't otherwise" ?

The first is correct. It is part of those big license agreements.

If you use Google Play to distribute your product, part of the agreement is that your software will not "facilitate the distribution of software applications and games for use on Android devices outside of the Store." The license also requires: "Developers offering virtual goods or currencies within a game downloaded from Google Play must use Google Play's in-app billing service as the method of payment. Developers offering additional content, services or functionality within another category of app downloaded from Google Play must use Google Play's in-app billing service as the method of payment, except: where payment is primarily for physical goods or services (e.g., buying movie tickets, or buying a publication where the price also includes a hard copy subscription); or where payment is for digital content or goods that may be consumed outside of the app itself (e.g., buying songs that can be played on other music players)."

You must use the platform IAP APIs for _payments_ but I'm pretty sure its totally ok to _give_ users items and currencies for marketing purposes (or any other purpose)

So it should be no problem giving users rewards for downloading other games you've made.

Some games give users rewards in premium currency for doing things like watching ads, or as incentive to return when they havn't started the game in a few days.

Its not really any different from giving the user some coins/gems/whatever for completing a level or reaching some other goal in your game.

another is to let your app phone home to get a list of other products you've got, then show the other games to your players.

Annoying, yes, but can be very effective at getting your other products noticed.

I don't see how this is annoying unless you interrupt the users experience with it.

If you like the game, I think most people are happy to easily find more games from the same developer.

We often take it one step further and have playable demos of our new game embedded into our old games, and I've never heard anyone complain about it.