Hero Raising with Luck

Hero Raising with Luck is a free idle defense RPG for Android by S.B.GAMES, a solo developer in South Korea. Monsters pour down from the sky and your hero shoots them automatically; you spend gold on hero levels, screen-sweeping skills and a mercenary gacha where a duplicate is simply a miss (that's the 'luck'). A giant boss appears every 10 stages, and an endless mode opens after the main stages. Cloud save, a combat-power leaderboard, Korean and English. Rewarded ads only, no forced interstitials.