Comparison

Nemesis vs Challenge Go

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Nemesis

Engage in a thrilling 3D space shooter set in the year 3000. Battle for resources in a new star system across various game modes, including campaign and death-match. Supports VR headsets and external controllers for an immersive experience.

Highlights
  • Campaign and Death-Match modes
  • Single-player and multiplayer over WiFi
  • VR headset support
  • Gamepad support
  • Nine unlockable ships
  • Ten unlockable environments
  • 25 different power-ups
Features
Read full description

What is Nemesis? Nemesis is a theoretical brown dwarf star in orbit around our own sun, which may even have its own planetary system. Nemesis is also a 3D space shooter for the iPhone, iPad and Apple TV. (Want to try before you buy? Check out Nemesis Lite, also available in the app store.) The year is 3000... humanity has extended it's domain to the farthest reaches of the solar system. The new frontier is Nemesis, a star system rich with resources. Unfortunately, no one seems to agree on who owns this new frontier. Fight for your claim in this brave new world against ruthless enemies! Gameplay modes now include a campaign mode which can be played single-player or with a friend over wifi; and a death-match mode which can be played single-player or with up to 3 friends over wifi. VR headsets are now supported. While in VR mode, you can adjust: the screen size; vertical and horizontal position; the amount of parallax (that is, the space between your two virtual eyes); and whether or not your head movements are tracked. A VR headset and an external controller such as an extended gamepad are required. External controllers are also supported - both the standard profile (the one without thumbsticks) and the extended profile (the one with thumbsticks.) Our future is in your hands! Features: * Includes both a campaign mode and death-match mode, both of which can be played in single-player or multiplayer over wifi. * VR headset support. * Gamepad support (both the standard and extended profiles.) * Remote Control - control Nemesis 1.9 on tvOS or iOS via Nemesis 1.9 running on an iOS device. (Requires wifi.) * Beautiful graphics! * Intricately rendered explosion and smoke effects. * Nine unlockable ships and 10 unlockable environments. * Realistic physics. * Brutal AI. * 25 different power-ups, for all kinds of ways to smite your foes. * Listen to your own music while saving humanity. * Play in first person or third person modes. * Six different skill settings, from "practice" to "ace" in death-match; 5 skill settings in campaign. * User settable kill-limit in death-match mode. * Multi-player over wifi.

About

Challenge Go

Navigate diverse environments, from forests to space, by fighting through levels to reach the portal. Utilize items to overcome obstacles and progress through 100 challenging stages.

Highlights
  • Tile-based action/puzzle gameplay
  • Diverse environments (forests, space, ruins)
  • Item usage for progression
  • 100 challenging levels
  • Portal-based level progression
Features
Read full description

Challenge Go (aka Challengo / Ray's Challenge) is an action/puzzle game set in an expansive world, inspired by classic block-pushing games like Chip's Challenge and Sokoban. Originally released in 2006, it was quickly featured on the YoYoGames Sandbox where it went on to receive over 30,000 unique downloads. It has since gone through numerous major developments. The latest revamp adds touchscreen controls and sees its expansion to additional platforms. An online high-score system per level allows you to compete against others for the best time. Secrets galore including cheat codes and hidden areas. The goal in Challenge Go is simple: fight your way through each level to the portal to reach the next area. Get lost in forests, swamps, deserts. Walk over the sky in ever-changing weather and light, and even navigate the depths of space. Sneak through cursed ruins, war zones, dark labyrinths and haunted houses. Use items to run faster, open doors, pass hazards, and destroy. 100 levels total to challenge even the most dexterous.

Screenshots

Nemesis4 screens
Challenge Go4 screens

Verdict

The call

The clearest difference is price: Challenge Go at Free against Nemesis's $1.99. Challenge Go also leads on rating (5.0 vs 4.0) and update cadence (every 10 days vs every 3 months). On ratings volume, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Challenge Go is free to download; Nemesis costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Challenge Go holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 80% of Nemesis's written reviews are positive against 100% of Challenge Go's.

UpkeepUpdate frequency

Nemesis ships an update every 3 months, Challenge Go every 10 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard6 real differences · 4 level
Nemesis versus Challenge Go: the parameters behind the verdict, then further details
ParameterNemesisChallenge Go
Price$1.99Free — better
Rating4.0 (2 ratings)5.0 (2 ratings) — better
Positive reviews80.0% of reviews100.0% of reviews — better
Number of ratings22
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, Apple TV, Vision ProiPhone, iPad, iPod, Mac
Requires iOS17.210 — better
Further details — not scored
Size319 MB188 MB
Age rating12+4+
DeveloperDenizen Software, LLCConnor Hawke

Customer experience

Nemesis

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Challenge Go

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Nemesis

No in-app purchases

None

Challenge Go

No in-app purchases

Questions

Is Nemesis free?
Nemesis costs $1.99, with no in-app purchases.
Is Challenge Go free?
Challenge Go is free to download, with no in-app purchases.
Which has better reviews, Nemesis or Challenge Go?
Challenge Go is rated higher. Nemesis averages 4.0 out of 5 from 2 ratings, while Challenge Go averages 5.0 from 2 ratings.
Do Nemesis or Challenge Go have ads?
Neither Nemesis nor Challenge Go shows ads.
Which is updated more often, Nemesis or Challenge Go?
Nemesis ships an update every 3 months, and Challenge Go every 10 days. Most recently, Nemesis was updated on November 1, 2026 and Challenge Go on November 4, 2026.

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