Spacetime Sprint vs Idle Human Evolution Merge RPG
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Spacetime Sprint
Race through space, dodging obstacles at light speed while learning STEM principles. Work with historical scientists, enhance your gameplay with collected bits, and build your IQ to unlock new features. Recruit friends to assist in your cosmic journey.
- Learn STEM principles
- Work with famous scientists
- Explore Hubble images
- Collect bits to enhance gameplay
- Build IQ and unlock features
- Recruit friends as assistants
- Activate Power-Up Particles
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Launch a scientist across the cosmos at near light speed — and try not to slow down. SpaceTime Sprint is a one-thumb arcade runner built on real physics. Steer left and right to weave through asteroids, black holes, and the strangest phenomena in the universe. Every hit drags you below light speed; stay clean to keep your distance climbing. DODGE THE UNIVERSE Solar flares, pulsars, quasars, gravitational lensing, quantum tunnelling, dark matter, supernovae and more — each is its own hand-crafted set piece with its own trick to read and beat. Discover new theories as you run and they unlock in your codex. A LAB THAT'S YOURS Between runs, explore your laboratory. Spend the Bits you collect on power-up particles, new scientists to fly, galaxy backdrops, and playful lab gadgets — tap the disco ball, the Tesla coil, Schrödinger's cat box, and more. POWER-UP PARTICLES Stock particles like the Neutrino, Electron, Higgs Boson, Dark Matter and Antimatter, then grab them mid-run for a burst of speed, double Bits, a shield, a Bit magnet, or a clean sweep of the field. LEARN AS YOU PLAY Every theory comes with a plain-English explainer and a literal how-to-play. Guided walk-throughs teach you the lab and the controls. It's an arcade game with a physics degree. CHASE THE LEADERBOARD Bank your furthest Light-second distance and your biggest single-run Bit haul, and climb the boards. FEATURES • One-thumb arcade controls — tap or tilt • Over 50 physics-themed set pieces to discover • A living lab to explore and upgrade • Collectible power-up particles • Unlockable scientists and galaxy backdrops • Practice mode for any theory you've found • Procedural music and sound, no ads, no nonsense No account, no internet required. Just you, a scientist, and the speed of light.
Idle Human Evolution Merge RPG
Guide a hero from primitive times to a cosmic empire in this idle RPG. Evolve humans through various ages, unlock new abilities, and engage in strategic battles with evolving bombs. Enjoy offline progress and customize your hero's journey.
- Evolve humans through the ages
- Idle evolution progress
- Merge life simulator mechanics
- Unlock evolving bombs
- Time travel through eras
- Customize and upgrade hero
- Offline progression
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Do you love RPG idle Human Evolution Games where you evolve humans through the ages of empire? In this human evolution merge life simulator, you’ll guide a hero from the primitive era civilization through an hyper evolution adventure ages journey to a cosmic empire. Enjoy human evolution clicker mechanics, idle evolution progress, and even evolving bombs! EVOLVE HUMANS Start your civilization journey in the prehistoric period and primitive era. Survive ancient dangers and unlock new abilities. Enjoy time travel through the ages of empire, through futuristic worlds and beyond, shaping your hero into the ultimate warrior. RPG IDLE HUMAN EVOLUTION GAMEPLAY Auto Progression: Evolve humans, fight battles with evolving bombs, and gather resources—even when you're offline! Exciting Idle Human Battles: Face powerful enemies, use human civilization skills with strategy, and level up effortlessly. Simple Controls: Play this human evolution merge life simulator with ease, enjoy evolution clicker mechanics, and watch your hero’s transformation. CUSTOMIZE & UPGRADE YOUR HERO Evolution Paths: Choose different evolutionary upgrades and specializations. Powerful Skills: Unlock and enhance abilities that help you dominate battles. Unique Gear & Artifacts: Equip weapons and relics from each era to boost strength. EXPLORE A VAST UNIVERSE Time Travel Through the Ages: From the Stone Age and primitive era to futuristic space civilization. Discover Hidden Secrets and evolve humans: Unlock special hyper evolution stages and rare artifacts. History-Driven Progression: Each stage in this human evolution merge life simulator unfolds a new chapter in your hero’s legend. WHY PLAY EVOLUTION: IDLE RPG? Addictive idle mechanics that keep the game running 24/7. Beautifully designed eras with stunning visuals. A mix of casual and strategic gameplay—play your way! Embark on the ultimate evolution journey and build your hero’s legacy! This RPG idle human evolution merge life simulator lets you evolve humans through the ages of empire. Enjoy evolution clicker mechanics, unlock evolving bombs, and master Idle evolution civilization across the adventure ages. Start your Human Evolution Adventure today! Privacy Policy: https://multicastgames.com/policy Terms of Use: https://multicastgames.com/termsofuse
Screenshots
Verdict
The clearest difference is review sentiment: Spacetime Sprint at 100% against Idle Human Evolution Merge RPG's 54%. Spacetime Sprint also leads on in-app purchases (none vs 15) and ads (none vs shown). Idle Human Evolution Merge RPG's advantage is ratings volume (785 vs 3) and iOS requirement (13.0 vs 16.0). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Idle Human Evolution Merge RPG sells 14 one-off in-app purchases. Spacetime Sprint asks for nothing beyond the download.
Spacetime Sprint holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Idle Human Evolution Merge RPG has 785 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Spacetime Sprint's written reviews are positive against 54% of Idle Human Evolution Merge RPG's.
Spacetime Sprint ships an update every 3 days, Idle Human Evolution Merge RPG every 2 months. The most recent releases landed on October 5, 2026 and October 30, 2026 respectively.
| Parameter | Spacetime Sprint | Idle Human Evolution Merge RPG |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.8 (785 ratings) |
| Positive reviews | 100.0% of reviews — better | 54.3% of reviews |
| Number of ratings | 3 | 785 — better |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 75 MB | 439 MB |
| Age rating | 4+ | 12+ |
| Developer | Joshua Fair | MULTICAST GAMES LIMITED |
Customer experience
Spacetime Sprint
Idle Human Evolution Merge RPG
Bugs and requests
Spacetime Sprint
Not enough reviews yet to summarise bugs or requests.
Idle Human Evolution Merge RPG
Reported bugs
3 issues- Health bug causing health to drop unexpectedly
- Issues with attack and health percentage upgrades
- Unable to find religion for portal
Requested features
3 requests- Option to make icons smaller
- More content and updates
- Fix for health bug and other issues
In-app purchases
Spacetime Sprint
No in-app purchases
Idle Human Evolution Merge RPG
- Gems Pack 01$1.99
- Age Pack 1$1.99
- Age Pack 2$4.99
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- Gems Pack 02$4.99
- Gems Pack 03$9.99
- Age Pack 3$9.99
- Age Great Pack 2$9.99
- Age Pack 4$14.99
- Age Pack 9$19.99
- Age Great Pack 3$19.99
- Gems Pack 04$19.99
- Age Great Pack 4$29.99
- No Ads$34.99
- Gems Pack 06$99.99
Questions
Is Spacetime Sprint free?
Is Idle Human Evolution Merge RPG free?
Which has better reviews, Spacetime Sprint or Idle Human Evolution Merge RPG?
Do Spacetime Sprint or Idle Human Evolution Merge RPG have ads?
Which is updated more often, Spacetime Sprint or Idle Human Evolution Merge RPG?
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