Cosmic Express vs SYSCALL
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Cosmic Express
Plan intricate train routes for a quirky space colony in this challenging puzzle game. Navigate hundreds of levels filled with cute aliens and increasingly difficult scenarios. Enjoy hours of engaging, frustrating fun without any in-app purchases or ads.
- Train route planning puzzles
- Hundreds of levels
- Cute alien characters
- Challenging gameplay
- No in-app purchases
- No ads
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Cosmic Express is a puzzle game about planning the train route for the world's most awkward space colony, from the minds behind A Good Snowman Is Hard To Build and the art of Tyu from Klondike. It's cute, harder than it looks, and guaranteed to give you hours of frustrating fun across hundreds of levels. No in-app-purchases or ads. iPhone 5S, iPad Air, iPad Mini 2 or later recommended. Awards: Finalist - IMGA Global, 2017 Finalist - IndiePlus, 2017 Official Selection - Indie Megabooth, GDC 2017 Official Selection - Google Play Indie Corner, PAX 2016
SYSCALL
Engage in a unique reverse-engineering and assembly optimization puzzle game set within a 1990s warez BBS. Write and debug assembly programs to crack software, patch code, and navigate a virtual network. Explore a private board with tools and community features.
- Reverse-engineering assembly puzzles
- Code tracing and patching
- Network hacking challenges
- Virtual BBS environment
- Assembly pixel art tool
- Chip-tune maker
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The mobile version of the SYSCALL: RING ZERO assembly puzzle game is here! This is our world now. The world of the electron and the switch. SYSCALL is a reverse-engineering and assembly optimization puzzle game inside a private 1990s warez BBS. You will be writing assembly programs, reading listings, tracing the machine, changing the code, and shipping the crack. READ THE CODE THAT RUNS Every CRACK release is a small SYSCALL CORE program. You are able to trace programs, inspect assembly instructions, get hints and watch registers move, in order to find the way to TRACE, CRACK and PATCH programs. FOUR WAYS TO HACK THE NETWORK CRACK: Read the listing, find the secret input key, and bypass the protection. PATCH: Fit the smallest fix into fixed edit slots, then run the test battery. WORM: Program a dynamic up to nine-core rack, route values across ports, and cut lines and cycles. SCOPE: Write firmware until the live trace locks onto the ghost signal. A PRIVATE BOARD WITH REAL TOOLS Dial in, pick a node on the NETWORK MAP, read the mail, check the notes, and work the releases. The board has PHILES that teach the SYSCALL CORE, crew messages, NFOs, greets, records, and side tools. CANVAS is a freeform assembly pixel toy. TRACKER is a four-channel chip-tune maker you can set as the board music.
Screenshots
Verdict
The clearest difference is rating: Cosmic Express at 4.8 against SYSCALL's 4.0. Cosmic Express also leads on ratings volume (198 vs 1) and price ($5.99 vs $7.99). SYSCALL's advantage is update cadence (weekly vs every 3 weeks). On ads, in-app purchases, monetization model 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
Cosmic Express costs $5.99 and SYSCALL $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Cosmic Express holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Cosmic Express has 198 ratings behind it against 1, so its average is the more settled of the two.
Cosmic Express ships an update every 3 weeks, SYSCALL weekly. The most recent releases landed on September 25, 2026 and September 10, 2026 respectively.
| Parameter | Cosmic Express | SYSCALL |
|---|---|---|
| Price | $5.99 — better | $7.99 |
| Rating | 4.8 (198 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 90.8% of reviews | — |
| Number of ratings | 198 — better | 1 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 196 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Draknek Limited | Chilling Moose |
Customer experience
Cosmic Express
SYSCALL
Bugs and requests
Cosmic Express
Reported bugs
3 issues- Delphinus 6 cannot achieve gold star despite correct solutions
- Accidental purchases through scrolling (multiple reports)
- Duplicate billing for already purchased app
Requested features
4 requests- Level editor mode to create and share custom puzzles
- Hint system or optional solution guides
- More levels or sequel content
- Different editing mode for easier track deletion/modification
SYSCALL
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cosmic Express
No in-app purchases
SYSCALL
No in-app purchases
