I'm just about to complete the 1rst version of what you're seeking...
Topic is in French, but apply is working both french and english
visit dealabs.com, go to the forum, "blabla", "Besoin d'alpha testeur...pokemon-like"
Actually :
38 differents monsters
battle (really simplist, i have to improve it)
catch
heal
To catch monster you have to travel with your android smartphone, GPS activated (no need of wifi/3G/4G, except to upgrade the game, when YOU request it...or google map displaying...but you don't "need" it)
6/7 monsters (Phonsters) appears on the map and you have to reach them (in a range of 50m) to catch them (by fighting them... but not to much or they will die...but they can escape too...

)
Once one is killed/captured/flought away, one other appear on the map
I'm about to finish arena so you can progress through level (when you're lvl 10, 1 arena is displayed to grant you to access the 10th monster after the 10 first one, (from 10 to 20) when you're lvl 20, arena for monster 20 to 30 etc...)
next step is PNJ fighting (really similar to arena...except PNJ can be found anytime), after that i will created trading system (via internet)
after that i will create fire/earth/water/wind system fight
Weekly update and daily point of developpement progress