Defend your reactor against 15 waves of geometric enemies. Your turret fires automatically. Choose upgrades between waves and activate special weapons at the right moment.
Combine chain lightning, orbiting energy spheres, missiles, meteors and a sweeping energy beam. A reactor warning starts at 90 percent charge. At 100 percent, the reactor overheats and locks immediately.
The free game includes a complete 15-wave run. Advertisements appear between eligible runs and restarts, never between individual waves. If no network ad is available, a short promotion for another Rivertake game appears.
The free game also includes a daily 10-wave challenge with shared starting conditions per UTC day and a separate local daily score.
One optional full-version purchase adds:
• Endless: survive increasingly difficult waves.
• Boss rush: 15 stages with denser escorts. Stages 10–14 pit you against two bosses, and the final stage against three. Repairs after stages 5 and 10.
• Missile command: 15 waves using only the main gun and missiles.
• Hot Core: 15 waves. Discharges generate heat and block charging for three seconds. Overheating costs health and locks the reactor for eight seconds.
• Blitz Assault: 20 waves. Movement speed rises through 400, 550, 700, 850 and 1000 percent over five three-wave blocks. The last five waves run at 1500 percent.
• Onslaught: 15 dense waves at intervals of 14 down to 8 game seconds. Surviving enemies remain.
• Missions: intercept marked attackers, destroy three dangerous relays and defeat the commander. Shared health and two repairs.
• No advertisements or Rivertake promotions.
Each mode has its own local high score. Challenge rules and starting conditions stay fixed so you can improve on previous attempts.
Portrait touch controls, offline gameplay, saved-run continuation, nine languages including Hindi, separate music and sound controls, and an option to reduce visual effects. Records are stored on your device. Internet and Google Play are needed to buy or restore the full version.
Daily conditions change at the UTC day boundary.
Defend the core, time your weapons and unleash the reactor shockwave.