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JumpJet Rex

JumpJet Rex

Test your dinosaur jump-jet skills with a game that redefines the platformer genre, aptly renaming it "platflyer." Simply put, you're a t-rex with rocket boots trying to save earth from an incoming asteroid. Do you have what it takes to stop it?

Released Apr 21, 2015 Developer TreeFortress Games Platforms Windows · Mac · Linux Side Scroller2D PlatformerRunnerRacingDifficult
View on Steam ↗ $9.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26 · quoted reviews as of 2026-05-18.

87.1%positive533 reviews
Recommended · 7 found this helpful

“A cute T-rex with rocket boots! Two things to make this even better. Booze and heavy metal!”

— a player, Steam review · 1 hrs played
Recommended · 0 found this helpful

“Fast-paced with the right level of difficulty. Fun game, wholeheartedly recommend.”

— a player, Steam review · 14 hrs played
Recommended · 0 found this helpful

“old school goodness”

— a player, Steam review · 0 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2024-12 via SteamCharts.

66all-time peak
0 5 10 2016 2018 2020 2022 2024 No data collected for this period No data collected for this period No data collected for this period No data collected for this period No data collected for this period No data collected for this period 8 avg · May 2016

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

51achievements
4.1%median completion
1.4%rarest: Ragequit Rex
90.5% of players 80.4% of players 70.1% of players 34.1% of players 30.4% of players 22.7% of players 19.9% of players 15.8% of players 14.8% of players 14.3% of players 12.9% of players 12.3% of players 10.6% of players 9.8% of players 8.1% of players 8.0% of players 7.2% of players 6.9% of players 6.2% of players 6.2% of players 6.1% of players 6.1% of players 5.0% of players 4.7% of players 4.2% of players 4.1% of players 4.1% of players 3.8% of players 3.8% of players 3.7% of players 3.6% of players 3.4% of players 3.2% of players 3.0% of players 2.6% of players 2.4% of players 2.4% of players 2.2% of players 2.2% of players 2.1% of players 2.0% of players 1.9% of players 1.8% of players 1.8% of players 1.8% of players 1.7% of players 1.7% of players 1.7% of players 1.5% of players 1.4% of players 1.4% of players 90.5% 0% most earned rarest
Almost everyone has
90.5%Backlogasaurus — Play the game instead of letting it go extinct in your backlog
80.4%Basic Training — Complete Boot Camp
70.1%Coinosaur — Collect every coin in a level
Rarest badges of honor
1.4%Ragequit Rex — Complete the RageQuit Rex mode
1.4%Rage Master — Beat Ragequit Rex without losing any lives.
1.5%Dinonaut Master — Beat Adventure mode on normal, getting every star and hidden package, under 3 hours

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-08-12. Steam prices vary by region — always confirm your local price on Steam.

$9.99current · sampled 2026-09-26 21:12 UTC
$5.49lowest since tracking began2026-09-14
US9.99 USD
UK6.99 GBP
Australia14.50 AUD
Canada10.99 CAD
Japan980 JPY
Brazil19.99 BRL
China36.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$3.9 China Japan Canada UK US Australia≈$10

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

$0 $10 $20 08-12 08-21 08-30 09-08 09-17 09-26

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Aug 20, 2015
TreeFortress Bundle!

Hey everyone! We recently pushed a bunch of fixes you had brought to our attention, so thank you for doing that! Hopefully it plays better all across the board, please keep the feedback coming so we c

Aug 20, 2015
TreeFortress Bundle!

Hey everyone! We recently pushed a bunch of fixes you had brought to our attention, so thank you for doing that! Hopefully it plays better all across the board, please keep the feedback coming so we c

Aug 04, 2015
JJR 1.11 Update and SALE!

Hi Guys, we're happy to release the latest update to JJR, that includes new PvP Arena and Race Modes. The game is also currently $4.94 so please go pick it up if you've been putting it off! Arena Mode

Aug 04, 2015
JJR 1.11 Update and SALE!

Hi Guys, we're happy to release the latest update to JJR, that includes new PvP Arena and Race Modes. The game is also currently $4.94 so please go pick it up if you've been putting it off! Arena Mode

Jul 02, 2015
Version 1.1: Introducing PvP Arena and Race Modes!

Hi Guys, we're happy to release the latest update to JJR, that includes new PvP Arena and Race Modes. Arena Modes Get The Cookie Battle with your friends to collect Cookies around the level, and bring

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-18.

GenresAction, Adventure, Indie, Racing
Player tagsSide Scroller · 2D Platformer · Runner · Racing · Difficult · Platformer · Action-Adventure · 2D · Cute · Dinosaurs · Linear · Multiple Endings (SteamSpy community voting)
FeaturesSingle-player · Multi-player · Shared/Split Screen · Steam Achievements · Full controller support · Steam Cloud · Stats · Steam Leaderboards
LanguagesEnglish, French, Italian, German, Spanish - Spain, Russian
ControllerFull support
Achievements51
Official sitehttp://jumpjetrex.com
Minimum system requirements (PC)

Minimum: OS *: Windows XP+ Processor: SSE2 instruction set support. Memory: 512 MB RAM Graphics: DX9 (shader model 2.0) capabilities; generally everything made since 2004 should work. Storage: 200 MB available space